[{"page":"1433-1443","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2206.07138"}],"scopus_import":"1","publication_identifier":{"issn":["2397-3366"]},"author":[{"last_name":"Doroshenko","full_name":"Doroshenko, Victor","first_name":"Victor"},{"last_name":"Poutanen","full_name":"Poutanen, Juri","first_name":"Juri"},{"full_name":"Tsygankov, Sergey S.","first_name":"Sergey S.","last_name":"Tsygankov"},{"full_name":"Suleimanov, Valery F.","first_name":"Valery F.","last_name":"Suleimanov"},{"last_name":"Bachetti","first_name":"Matteo","full_name":"Bachetti, Matteo"},{"full_name":"Caiazzo, Ilaria","first_name":"Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d","orcid":"0000-0002-4770-5388","last_name":"Caiazzo"},{"last_name":"Costa","first_name":"Enrico","full_name":"Costa, Enrico"},{"full_name":"Di Marco, Alessandro","first_name":"Alessandro","last_name":"Di Marco"},{"last_name":"Heyl","full_name":"Heyl, Jeremy","first_name":"Jeremy"},{"first_name":"Fabio","full_name":"La Monaca, Fabio","last_name":"La Monaca"},{"last_name":"Muleri","first_name":"Fabio","full_name":"Muleri, Fabio"},{"first_name":"Alexander A.","full_name":"Mushtukov, Alexander A.","last_name":"Mushtukov"},{"last_name":"Pavlov","full_name":"Pavlov, George G.","first_name":"George G."},{"first_name":"Brian D.","full_name":"Ramsey, Brian D.","last_name":"Ramsey"},{"last_name":"Rankin","first_name":"John","full_name":"Rankin, John"},{"first_name":"Andrea","full_name":"Santangelo, Andrea","last_name":"Santangelo"},{"first_name":"Paolo","full_name":"Soffitta, Paolo","last_name":"Soffitta"},{"first_name":"Rüdiger","full_name":"Staubert, Rüdiger","last_name":"Staubert"},{"last_name":"Weisskopf","first_name":"Martin C.","full_name":"Weisskopf, Martin C."},{"first_name":"Silvia","full_name":"Zane, Silvia","last_name":"Zane"},{"last_name":"Agudo","full_name":"Agudo, Iván","first_name":"Iván"},{"first_name":"Lucio A.","full_name":"Antonelli, Lucio A.","last_name":"Antonelli"},{"last_name":"Baldini","full_name":"Baldini, Luca","first_name":"Luca"},{"full_name":"Baumgartner, Wayne H.","first_name":"Wayne H.","last_name":"Baumgartner"},{"last_name":"Bellazzini","full_name":"Bellazzini, Ronaldo","first_name":"Ronaldo"},{"last_name":"Bianchi","first_name":"Stefano","full_name":"Bianchi, Stefano"},{"first_name":"Stephen D.","full_name":"Bongiorno, Stephen D.","last_name":"Bongiorno"},{"last_name":"Bonino","first_name":"Raffaella","full_name":"Bonino, Raffaella"},{"last_name":"Brez","full_name":"Brez, Alessandro","first_name":"Alessandro"},{"first_name":"Niccolò","full_name":"Bucciantini, Niccolò","last_name":"Bucciantini"},{"full_name":"Capitanio, Fiamma","first_name":"Fiamma","last_name":"Capitanio"},{"last_name":"Castellano","first_name":"Simone","full_name":"Castellano, Simone"},{"full_name":"Cavazzuti, Elisabetta","first_name":"Elisabetta","last_name":"Cavazzuti"},{"first_name":"Stefano","full_name":"Ciprini, Stefano","last_name":"Ciprini"},{"last_name":"De Rosa","first_name":"Alessandra","full_name":"De Rosa, Alessandra"},{"last_name":"Del Monte","full_name":"Del Monte, Ettore","first_name":"Ettore"},{"last_name":"Di Gesu","first_name":"Laura","full_name":"Di Gesu, Laura"},{"last_name":"Di Lalla","first_name":"Niccolò","full_name":"Di Lalla, Niccolò"},{"last_name":"Donnarumma","first_name":"Immacolata","full_name":"Donnarumma, Immacolata"},{"full_name":"Dovčiak, Michal","first_name":"Michal","last_name":"Dovčiak"},{"last_name":"Ehlert","first_name":"Steven R.","full_name":"Ehlert, Steven R."},{"first_name":"Teruaki","full_name":"Enoto, Teruaki","last_name":"Enoto"},{"full_name":"Evangelista, Yuri","first_name":"Yuri","last_name":"Evangelista"},{"full_name":"Fabiani, Sergio","first_name":"Sergio","last_name":"Fabiani"},{"last_name":"Ferrazzoli","full_name":"Ferrazzoli, Riccardo","first_name":"Riccardo"},{"full_name":"Garcia, Javier A.","first_name":"Javier A.","last_name":"Garcia"},{"first_name":"Shuichi","full_name":"Gunji, Shuichi","last_name":"Gunji"},{"full_name":"Hayashida, Kiyoshi","first_name":"Kiyoshi","last_name":"Hayashida"},{"full_name":"Iwakiri, Wataru","first_name":"Wataru","last_name":"Iwakiri"},{"last_name":"Jorstad","first_name":"Svetlana G.","full_name":"Jorstad, Svetlana G."},{"last_name":"Karas","first_name":"Vladimir","full_name":"Karas, Vladimir"},{"full_name":"Kitaguchi, Takao","first_name":"Takao","last_name":"Kitaguchi"},{"last_name":"Kolodziejczak","first_name":"Jeffery J.","full_name":"Kolodziejczak, Jeffery J."},{"full_name":"Krawczynski, Henric","first_name":"Henric","last_name":"Krawczynski"},{"first_name":"Luca","full_name":"Latronico, Luca","last_name":"Latronico"},{"first_name":"Ioannis","full_name":"Liodakis, Ioannis","last_name":"Liodakis"},{"full_name":"Maldera, Simone","first_name":"Simone","last_name":"Maldera"},{"full_name":"Manfreda, Alberto","first_name":"Alberto","last_name":"Manfreda"},{"last_name":"Marin","first_name":"Frédéric","full_name":"Marin, Frédéric"},{"first_name":"Andrea","full_name":"Marinucci, Andrea","last_name":"Marinucci"},{"last_name":"Marscher","full_name":"Marscher, Alan P.","first_name":"Alan P."},{"full_name":"Marshall, Herman L.","first_name":"Herman L.","last_name":"Marshall"},{"first_name":"Giorgio","full_name":"Matt, Giorgio","last_name":"Matt"},{"last_name":"Mitsuishi","first_name":"Ikuyuki","full_name":"Mitsuishi, Ikuyuki"},{"full_name":"Mizuno, Tsunefumi","first_name":"Tsunefumi","last_name":"Mizuno"},{"full_name":"Ng, Chi-Yung","first_name":"Chi-Yung","last_name":"Ng"},{"last_name":"O’Dell","full_name":"O’Dell, Stephen L.","first_name":"Stephen L."},{"last_name":"Omodei","full_name":"Omodei, Nicola","first_name":"Nicola"},{"full_name":"Oppedisano, Chiara","first_name":"Chiara","last_name":"Oppedisano"},{"last_name":"Papitto","first_name":"Alessandro","full_name":"Papitto, Alessandro"},{"full_name":"Peirson, Abel L.","first_name":"Abel L.","last_name":"Peirson"},{"full_name":"Perri, Matteo","first_name":"Matteo","last_name":"Perri"},{"last_name":"Pesce-Rollins","full_name":"Pesce-Rollins, Melissa","first_name":"Melissa"},{"last_name":"Pilia","first_name":"Maura","full_name":"Pilia, Maura"},{"last_name":"Possenti","full_name":"Possenti, Andrea","first_name":"Andrea"},{"first_name":"Simonetta","full_name":"Puccetti, Simonetta","last_name":"Puccetti"},{"full_name":"Ratheesh, Ajay","first_name":"Ajay","last_name":"Ratheesh"},{"last_name":"Romani","full_name":"Romani, Roger W.","first_name":"Roger W."},{"last_name":"Sgrò","full_name":"Sgrò, Carmelo","first_name":"Carmelo"},{"last_name":"Slane","first_name":"Patrick","full_name":"Slane, Patrick"},{"full_name":"Spandre, Gloria","first_name":"Gloria","last_name":"Spandre"},{"last_name":"Sunyaev","full_name":"Sunyaev, Rashid A.","first_name":"Rashid A."},{"last_name":"Tamagawa","first_name":"Toru","full_name":"Tamagawa, Toru"},{"first_name":"Fabrizio","full_name":"Tavecchio, Fabrizio","last_name":"Tavecchio"},{"last_name":"Taverna","full_name":"Taverna, Roberto","first_name":"Roberto"},{"first_name":"Yuzuru","full_name":"Tawara, Yuzuru","last_name":"Tawara"},{"first_name":"Allyn F.","full_name":"Tennant, Allyn F.","last_name":"Tennant"},{"full_name":"Thomas, Nicolas E.","first_name":"Nicolas E.","last_name":"Thomas"},{"last_name":"Tombesi","full_name":"Tombesi, Francesco","first_name":"Francesco"},{"last_name":"Trois","full_name":"Trois, Alessio","first_name":"Alessio"},{"last_name":"Turolla","full_name":"Turolla, Roberto","first_name":"Roberto"},{"last_name":"Vink","first_name":"Jacco","full_name":"Vink, Jacco"},{"full_name":"Wu, Kinwah","first_name":"Kinwah","last_name":"Wu"},{"first_name":"Fei","full_name":"Xie, Fei","last_name":"Xie"}],"day":"22","type":"journal_article","article_processing_charge":"No","fulldoi":"https://doi.org/10.1038/s41550-022-01799-5","date_published":"2022-10-22T00:00:00Z","external_id":{"arxiv":["2206.07138"]},"arxiv":1,"keyword":["Astronomy and Astrophysics"],"language":[{"iso":"eng"}],"citation":{"ista":"Doroshenko V, Poutanen J, Tsygankov SS, Suleimanov VF, Bachetti M, Caiazzo I, Costa E, Di Marco A, Heyl J, La Monaca F, Muleri F, Mushtukov AA, Pavlov GG, Ramsey BD, Rankin J, Santangelo A, Soffitta P, Staubert R, Weisskopf MC, Zane S, Agudo I, Antonelli LA, Baldini L, Baumgartner WH, Bellazzini R, Bianchi S, Bongiorno SD, Bonino R, Brez A, Bucciantini N, Capitanio F, Castellano S, Cavazzuti E, Ciprini S, De Rosa A, Del Monte E, Di Gesu L, Di Lalla N, Donnarumma I, Dovčiak M, Ehlert SR, Enoto T, Evangelista Y, Fabiani S, Ferrazzoli R, Garcia JA, Gunji S, Hayashida K, Iwakiri W, Jorstad SG, Karas V, Kitaguchi T, Kolodziejczak JJ, Krawczynski H, Latronico L, Liodakis I, Maldera S, Manfreda A, Marin F, Marinucci A, Marscher AP, Marshall HL, Matt G, Mitsuishi I, Mizuno T, Ng C-Y, O’Dell SL, Omodei N, Oppedisano C, Papitto A, Peirson AL, Perri M, Pesce-Rollins M, Pilia M, Possenti A, Puccetti S, Ratheesh A, Romani RW, Sgrò C, Slane P, Spandre G, Sunyaev RA, Tamagawa T, Tavecchio F, Taverna R, Tawara Y, Tennant AF, Thomas NE, Tombesi F, Trois A, Turolla R, Vink J, Wu K, Xie F. 2022. Determination of X-ray pulsar geometry with IXPE polarimetry. Nature Astronomy. 6(12), 1433–1443.","ama":"Doroshenko V, Poutanen J, Tsygankov SS, et al. Determination of X-ray pulsar geometry with IXPE polarimetry. <i>Nature Astronomy</i>. 2022;6(12):1433-1443. doi:<a href=\"https://doi.org/10.1038/s41550-022-01799-5\">10.1038/s41550-022-01799-5</a>","mla":"Doroshenko, Victor, et al. “Determination of X-Ray Pulsar Geometry with IXPE Polarimetry.” <i>Nature Astronomy</i>, vol. 6, no. 12, Springer Nature, 2022, pp. 1433–43, doi:<a href=\"https://doi.org/10.1038/s41550-022-01799-5\">10.1038/s41550-022-01799-5</a>.","chicago":"Doroshenko, Victor, Juri Poutanen, Sergey S. Tsygankov, Valery F. Suleimanov, Matteo Bachetti, Ilaria Caiazzo, Enrico Costa, et al. “Determination of X-Ray Pulsar Geometry with IXPE Polarimetry.” <i>Nature Astronomy</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1038/s41550-022-01799-5\">https://doi.org/10.1038/s41550-022-01799-5</a>.","apa":"Doroshenko, V., Poutanen, J., Tsygankov, S. S., Suleimanov, V. F., Bachetti, M., Caiazzo, I., … Xie, F. (2022). Determination of X-ray pulsar geometry with IXPE polarimetry. <i>Nature Astronomy</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41550-022-01799-5\">https://doi.org/10.1038/s41550-022-01799-5</a>","short":"V. Doroshenko, J. Poutanen, S.S. Tsygankov, V.F. Suleimanov, M. Bachetti, I. Caiazzo, E. Costa, A. Di Marco, J. Heyl, F. La Monaca, F. Muleri, A.A. Mushtukov, G.G. Pavlov, B.D. Ramsey, J. Rankin, A. Santangelo, P. Soffitta, R. Staubert, M.C. Weisskopf, S. Zane, I. Agudo, L.A. Antonelli, L. Baldini, W.H. Baumgartner, R. Bellazzini, S. Bianchi, S.D. Bongiorno, R. Bonino, A. Brez, N. Bucciantini, F. Capitanio, S. Castellano, E. Cavazzuti, S. Ciprini, A. De Rosa, E. Del Monte, L. Di Gesu, N. Di Lalla, I. Donnarumma, M. Dovčiak, S.R. Ehlert, T. Enoto, Y. Evangelista, S. Fabiani, R. Ferrazzoli, J.A. Garcia, S. Gunji, K. Hayashida, W. Iwakiri, S.G. Jorstad, V. Karas, T. Kitaguchi, J.J. Kolodziejczak, H. Krawczynski, L. Latronico, I. Liodakis, S. Maldera, A. Manfreda, F. Marin, A. Marinucci, A.P. Marscher, H.L. Marshall, G. Matt, I. Mitsuishi, T. Mizuno, C.-Y. Ng, S.L. O’Dell, N. Omodei, C. Oppedisano, A. Papitto, A.L. Peirson, M. Perri, M. Pesce-Rollins, M. Pilia, A. Possenti, S. Puccetti, A. Ratheesh, R.W. Romani, C. Sgrò, P. Slane, G. Spandre, R.A. Sunyaev, T. Tamagawa, F. Tavecchio, R. Taverna, Y. Tawara, A.F. Tennant, N.E. Thomas, F. Tombesi, A. Trois, R. Turolla, J. Vink, K. Wu, F. Xie, Nature Astronomy 6 (2022) 1433–1443.","ieee":"V. Doroshenko <i>et al.</i>, “Determination of X-ray pulsar geometry with IXPE polarimetry,” <i>Nature Astronomy</i>, vol. 6, no. 12. Springer Nature, pp. 1433–1443, 2022."},"publication_status":"published","year":"2022","volume":6,"doi":"10.1038/s41550-022-01799-5","quality_controlled":"1","issue":"12","status":"public","publisher":"Springer Nature","title":"Determination of X-ray pulsar geometry with IXPE polarimetry","abstract":[{"text":"Using observations of X-ray pulsar Hercules X-1 by the Imaging X-ray Polarimetry Explorer we report a highly significant (>17σ) detection of the polarization signal from an accreting neutron star. The observed degree of linear polarization of ~10% is far below theoretical expectations for this object, and stays low throughout the spin cycle of the pulsar. Both the degree and angle of polarization exhibit variability with the pulse phase, allowing us to measure the pulsar spin position angle 57(2) deg and the magnetic obliquity 12(4) deg, which is an essential step towards detailed modelling of the intrinsic emission of X-ray pulsars. Combining our results with the optical polarimetric data, we find that the spin axis of the neutron star and the angular momentum of the binary orbit are misaligned by at least ~20 deg, which is a strong argument in support of the models explaining the stability of the observed superorbital variability with the precession of the neutron star.","lang":"eng"}],"date_created":"2024-03-26T09:51:04Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_type":"original","extern":"1","_id":"15204","month":"10","oa_version":"Preprint","publication":"Nature Astronomy","intvolume":"         6","date_updated":"2024-04-02T07:16:54Z","oa":1},{"fulldoi":"https://doi.org/10.1126/science.add0080","external_id":{"arxiv":["2205.08898"]},"date_published":"2022-11-03T00:00:00Z","arxiv":1,"keyword":["Multidisciplinary"],"language":[{"iso":"eng"}],"page":"646-650","main_file_link":[{"url":"https://arxiv.org/abs/2205.08898","open_access":"1"}],"scopus_import":"1","publication_identifier":{"eissn":["1095-9203"],"issn":["0036-8075"]},"author":[{"full_name":"Taverna, Roberto","first_name":"Roberto","last_name":"Taverna"},{"last_name":"Turolla","full_name":"Turolla, Roberto","first_name":"Roberto"},{"full_name":"Muleri, Fabio","first_name":"Fabio","last_name":"Muleri"},{"full_name":"Heyl, Jeremy","first_name":"Jeremy","last_name":"Heyl"},{"full_name":"Zane, Silvia","first_name":"Silvia","last_name":"Zane"},{"full_name":"Baldini, Luca","first_name":"Luca","last_name":"Baldini"},{"last_name":"González-Caniulef","first_name":"Denis","full_name":"González-Caniulef, Denis"},{"last_name":"Bachetti","first_name":"Matteo","full_name":"Bachetti, Matteo"},{"first_name":"John","full_name":"Rankin, John","last_name":"Rankin"},{"last_name":"Caiazzo","orcid":"0000-0002-4770-5388","full_name":"Caiazzo, Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d","first_name":"Ilaria"},{"full_name":"Di Lalla, Niccolò","first_name":"Niccolò","last_name":"Di Lalla"},{"first_name":"Victor","full_name":"Doroshenko, Victor","last_name":"Doroshenko"},{"last_name":"Errando","full_name":"Errando, Manel","first_name":"Manel"},{"full_name":"Gau, Ephraim","first_name":"Ephraim","last_name":"Gau"},{"last_name":"Kırmızıbayrak","first_name":"Demet","full_name":"Kırmızıbayrak, Demet"},{"last_name":"Krawczynski","first_name":"Henric","full_name":"Krawczynski, Henric"},{"full_name":"Negro, Michela","first_name":"Michela","last_name":"Negro"},{"first_name":"Mason","full_name":"Ng, Mason","last_name":"Ng"},{"full_name":"Omodei, Nicola","first_name":"Nicola","last_name":"Omodei"},{"first_name":"Andrea","full_name":"Possenti, Andrea","last_name":"Possenti"},{"first_name":"Toru","full_name":"Tamagawa, Toru","last_name":"Tamagawa"},{"last_name":"Uchiyama","first_name":"Keisuke","full_name":"Uchiyama, Keisuke"},{"last_name":"Weisskopf","full_name":"Weisskopf, Martin C.","first_name":"Martin C."},{"first_name":"Ivan","full_name":"Agudo, Ivan","last_name":"Agudo"},{"first_name":"Lucio A.","full_name":"Antonelli, Lucio A.","last_name":"Antonelli"},{"last_name":"Baumgartner","first_name":"Wayne H.","full_name":"Baumgartner, Wayne H."},{"full_name":"Bellazzini, Ronaldo","first_name":"Ronaldo","last_name":"Bellazzini"},{"last_name":"Bianchi","first_name":"Stefano","full_name":"Bianchi, Stefano"},{"last_name":"Bongiorno","first_name":"Stephen D.","full_name":"Bongiorno, Stephen D."},{"first_name":"Raffaella","full_name":"Bonino, Raffaella","last_name":"Bonino"},{"last_name":"Brez","first_name":"Alessandro","full_name":"Brez, Alessandro"},{"last_name":"Bucciantini","full_name":"Bucciantini, Niccolò","first_name":"Niccolò"},{"full_name":"Capitanio, Fiamma","first_name":"Fiamma","last_name":"Capitanio"},{"last_name":"Castellano","first_name":"Simone","full_name":"Castellano, Simone"},{"first_name":"Elisabetta","full_name":"Cavazzuti, Elisabetta","last_name":"Cavazzuti"},{"last_name":"Ciprini","first_name":"Stefano","full_name":"Ciprini, Stefano"},{"last_name":"Costa","full_name":"Costa, Enrico","first_name":"Enrico"},{"first_name":"Alessandra","full_name":"De Rosa, Alessandra","last_name":"De Rosa"},{"full_name":"Del Monte, Ettore","first_name":"Ettore","last_name":"Del Monte"},{"full_name":"Di Gesu, Laura","first_name":"Laura","last_name":"Di Gesu"},{"last_name":"Di Marco","first_name":"Alessandro","full_name":"Di Marco, Alessandro"},{"last_name":"Donnarumma","first_name":"Immacolata","full_name":"Donnarumma, Immacolata"},{"full_name":"Dovčiak, Michal","first_name":"Michal","last_name":"Dovčiak"},{"last_name":"Ehlert","first_name":"Steven R.","full_name":"Ehlert, Steven R."},{"last_name":"Enoto","first_name":"Teruaki","full_name":"Enoto, Teruaki"},{"first_name":"Yuri","full_name":"Evangelista, Yuri","last_name":"Evangelista"},{"full_name":"Fabiani, Sergio","first_name":"Sergio","last_name":"Fabiani"},{"full_name":"Ferrazzoli, Riccardo","first_name":"Riccardo","last_name":"Ferrazzoli"},{"first_name":"Javier A.","full_name":"Garcia, Javier A.","last_name":"Garcia"},{"first_name":"Shuichi","full_name":"Gunji, Shuichi","last_name":"Gunji"},{"last_name":"Hayashida","full_name":"Hayashida, Kiyoshi","first_name":"Kiyoshi"},{"first_name":"Wataru","full_name":"Iwakiri, Wataru","last_name":"Iwakiri"},{"last_name":"Jorstad","first_name":"Svetlana G.","full_name":"Jorstad, Svetlana G."},{"first_name":"Vladimir","full_name":"Karas, Vladimir","last_name":"Karas"},{"full_name":"Kitaguchi, Takao","first_name":"Takao","last_name":"Kitaguchi"},{"first_name":"Jeffery J.","full_name":"Kolodziejczak, Jeffery J.","last_name":"Kolodziejczak"},{"first_name":"Fabio","full_name":"La Monaca, Fabio","last_name":"La Monaca"},{"last_name":"Latronico","first_name":"Luca","full_name":"Latronico, Luca"},{"last_name":"Liodakis","first_name":"Ioannis","full_name":"Liodakis, Ioannis"},{"first_name":"Simone","full_name":"Maldera, Simone","last_name":"Maldera"},{"full_name":"Manfreda, Alberto","first_name":"Alberto","last_name":"Manfreda"},{"last_name":"Marin","full_name":"Marin, Frédéric","first_name":"Frédéric"},{"first_name":"Andrea","full_name":"Marinucci, Andrea","last_name":"Marinucci"},{"last_name":"Marscher","first_name":"Alan P.","full_name":"Marscher, Alan P."},{"last_name":"Marshall","full_name":"Marshall, Herman L.","first_name":"Herman L."},{"full_name":"Matt, Giorgio","first_name":"Giorgio","last_name":"Matt"},{"full_name":"Mitsuishi, Ikuyuki","first_name":"Ikuyuki","last_name":"Mitsuishi"},{"last_name":"Mizuno","full_name":"Mizuno, Tsunefumi","first_name":"Tsunefumi"},{"first_name":"Stephen C.-Y.","full_name":"Ng, Stephen C.-Y.","last_name":"Ng"},{"last_name":"O’Dell","first_name":"Stephen L.","full_name":"O’Dell, Stephen L."},{"last_name":"Oppedisano","first_name":"Chiara","full_name":"Oppedisano, Chiara"},{"last_name":"Papitto","first_name":"Alessandro","full_name":"Papitto, Alessandro"},{"first_name":"George G.","full_name":"Pavlov, George G.","last_name":"Pavlov"},{"last_name":"Peirson","first_name":"Abel L.","full_name":"Peirson, Abel L."},{"first_name":"Matteo","full_name":"Perri, Matteo","last_name":"Perri"},{"last_name":"Pesce-Rollins","full_name":"Pesce-Rollins, Melissa","first_name":"Melissa"},{"last_name":"Pilia","full_name":"Pilia, Maura","first_name":"Maura"},{"last_name":"Poutanen","first_name":"Juri","full_name":"Poutanen, Juri"},{"full_name":"Puccetti, Simonetta","first_name":"Simonetta","last_name":"Puccetti"},{"last_name":"Ramsey","full_name":"Ramsey, Brian D.","first_name":"Brian D."},{"first_name":"Ajay","full_name":"Ratheesh, Ajay","last_name":"Ratheesh"},{"first_name":"Roger W.","full_name":"Romani, Roger W.","last_name":"Romani"},{"first_name":"Carmelo","full_name":"Sgrò, Carmelo","last_name":"Sgrò"},{"full_name":"Slane, Patrick","first_name":"Patrick","last_name":"Slane"},{"last_name":"Soffitta","full_name":"Soffitta, Paolo","first_name":"Paolo"},{"last_name":"Spandre","first_name":"Gloria","full_name":"Spandre, Gloria"},{"last_name":"Tavecchio","first_name":"Fabrizio","full_name":"Tavecchio, Fabrizio"},{"first_name":"Yuzuru","full_name":"Tawara, Yuzuru","last_name":"Tawara"},{"first_name":"Allyn F.","full_name":"Tennant, Allyn F.","last_name":"Tennant"},{"first_name":"Nicholas E.","full_name":"Thomas, Nicholas E.","last_name":"Thomas"},{"last_name":"Tombesi","first_name":"Francesco","full_name":"Tombesi, Francesco"},{"full_name":"Trois, Alessio","first_name":"Alessio","last_name":"Trois"},{"full_name":"Tsygankov, Sergey S.","first_name":"Sergey S.","last_name":"Tsygankov"},{"last_name":"Vink","first_name":"Jacco","full_name":"Vink, Jacco"},{"last_name":"Wu","first_name":"Kinwah","full_name":"Wu, Kinwah"},{"first_name":"Fei","full_name":"Xie, Fei","last_name":"Xie"}],"day":"03","type":"journal_article","article_processing_charge":"No","date_created":"2024-03-26T09:51:30Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_type":"original","extern":"1","_id":"15205","month":"11","oa_version":"Preprint","publication":"Science","intvolume":"       378","date_updated":"2024-04-02T07:17:25Z","oa":1,"citation":{"ista":"Taverna R, Turolla R, Muleri F, Heyl J, Zane S, Baldini L, González-Caniulef D, Bachetti M, Rankin J, Caiazzo I, Di Lalla N, Doroshenko V, Errando M, Gau E, Kırmızıbayrak D, Krawczynski H, Negro M, Ng M, Omodei N, Possenti A, Tamagawa T, Uchiyama K, Weisskopf MC, Agudo I, Antonelli LA, Baumgartner WH, Bellazzini R, Bianchi S, Bongiorno SD, Bonino R, Brez A, Bucciantini N, Capitanio F, Castellano S, Cavazzuti E, Ciprini S, Costa E, De Rosa A, Del Monte E, Di Gesu L, Di Marco A, Donnarumma I, Dovčiak M, Ehlert SR, Enoto T, Evangelista Y, Fabiani S, Ferrazzoli R, Garcia JA, Gunji S, Hayashida K, Iwakiri W, Jorstad SG, Karas V, Kitaguchi T, Kolodziejczak JJ, La Monaca F, Latronico L, Liodakis I, Maldera S, Manfreda A, Marin F, Marinucci A, Marscher AP, Marshall HL, Matt G, Mitsuishi I, Mizuno T, Ng SC-Y, O’Dell SL, Oppedisano C, Papitto A, Pavlov GG, Peirson AL, Perri M, Pesce-Rollins M, Pilia M, Poutanen J, Puccetti S, Ramsey BD, Ratheesh A, Romani RW, Sgrò C, Slane P, Soffitta P, Spandre G, Tavecchio F, Tawara Y, Tennant AF, Thomas NE, Tombesi F, Trois A, Tsygankov SS, Vink J, Wu K, Xie F. 2022. Polarized x-rays from a magnetar. Science. 378(6620), 646–650.","mla":"Taverna, Roberto, et al. “Polarized X-Rays from a Magnetar.” <i>Science</i>, vol. 378, no. 6620, American Association for the Advancement of Science, 2022, pp. 646–50, doi:<a href=\"https://doi.org/10.1126/science.add0080\">10.1126/science.add0080</a>.","ama":"Taverna R, Turolla R, Muleri F, et al. Polarized x-rays from a magnetar. <i>Science</i>. 2022;378(6620):646-650. doi:<a href=\"https://doi.org/10.1126/science.add0080\">10.1126/science.add0080</a>","apa":"Taverna, R., Turolla, R., Muleri, F., Heyl, J., Zane, S., Baldini, L., … Xie, F. (2022). Polarized x-rays from a magnetar. <i>Science</i>. American Association for the Advancement of Science. <a href=\"https://doi.org/10.1126/science.add0080\">https://doi.org/10.1126/science.add0080</a>","chicago":"Taverna, Roberto, Roberto Turolla, Fabio Muleri, Jeremy Heyl, Silvia Zane, Luca Baldini, Denis González-Caniulef, et al. “Polarized X-Rays from a Magnetar.” <i>Science</i>. American Association for the Advancement of Science, 2022. <a href=\"https://doi.org/10.1126/science.add0080\">https://doi.org/10.1126/science.add0080</a>.","ieee":"R. Taverna <i>et al.</i>, “Polarized x-rays from a magnetar,” <i>Science</i>, vol. 378, no. 6620. American Association for the Advancement of Science, pp. 646–650, 2022.","short":"R. Taverna, R. Turolla, F. Muleri, J. Heyl, S. Zane, L. Baldini, D. González-Caniulef, M. Bachetti, J. Rankin, I. Caiazzo, N. Di Lalla, V. Doroshenko, M. Errando, E. Gau, D. Kırmızıbayrak, H. Krawczynski, M. Negro, M. Ng, N. Omodei, A. Possenti, T. Tamagawa, K. Uchiyama, M.C. Weisskopf, I. Agudo, L.A. Antonelli, W.H. Baumgartner, R. Bellazzini, S. Bianchi, S.D. Bongiorno, R. Bonino, A. Brez, N. Bucciantini, F. Capitanio, S. Castellano, E. Cavazzuti, S. Ciprini, E. Costa, A. De Rosa, E. Del Monte, L. Di Gesu, A. Di Marco, I. Donnarumma, M. Dovčiak, S.R. Ehlert, T. Enoto, Y. Evangelista, S. Fabiani, R. Ferrazzoli, J.A. Garcia, S. Gunji, K. Hayashida, W. Iwakiri, S.G. Jorstad, V. Karas, T. Kitaguchi, J.J. Kolodziejczak, F. La Monaca, L. Latronico, I. Liodakis, S. Maldera, A. Manfreda, F. Marin, A. Marinucci, A.P. Marscher, H.L. Marshall, G. Matt, I. Mitsuishi, T. Mizuno, S.C.-Y. Ng, S.L. O’Dell, C. Oppedisano, A. Papitto, G.G. Pavlov, A.L. Peirson, M. Perri, M. Pesce-Rollins, M. Pilia, J. Poutanen, S. Puccetti, B.D. Ramsey, A. Ratheesh, R.W. Romani, C. Sgrò, P. Slane, P. Soffitta, G. Spandre, F. Tavecchio, Y. Tawara, A.F. Tennant, N.E. Thomas, F. Tombesi, A. Trois, S.S. Tsygankov, J. Vink, K. Wu, F. Xie, Science 378 (2022) 646–650."},"publication_status":"published","year":"2022","volume":378,"doi":"10.1126/science.add0080","quality_controlled":"1","issue":"6620","status":"public","publisher":"American Association for the Advancement of Science","abstract":[{"text":"Magnetars are neutron stars with ultrastrong magnetic fields, which can be observed in x-rays. Polarization measurements could provide information on their magnetic fields and surface properties. We observed polarized x-rays from the magnetar 4U 0142+61 using the Imaging X-ray Polarimetry Explorer and found a linear polarization degree of 13.5 ± 0.8% averaged over the 2– to 8–kilo–electron volt band. The polarization changes with energy: The degree is 15.0 ± 1.0% at 2 to 4 kilo–electron volts, drops below the instrumental sensitivity ~4 to 5 kilo–electron volts, and rises to 35.2 ± 7.1% at 5.5 to 8 kilo–electron volts. The polarization angle also changes by 90° at ~4 to 5 kilo–electron volts. These results are consistent with a model in which thermal radiation from the magnetar surface is reprocessed by scattering off charged particles in the magnetosphere.","lang":"eng"}],"title":"Polarized x-rays from a magnetar"},{"fulldoi":"https://doi.org/10.1093/mnras/stac2740","language":[{"iso":"eng"}],"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"arxiv":1,"external_id":{"arxiv":["2107.06828"]},"date_published":"2022-09-28T00:00:00Z","author":[{"last_name":"Rink","full_name":"Rink, Katherine","first_name":"Katherine"},{"orcid":"0000-0002-4770-5388","last_name":"Caiazzo","first_name":"Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d","full_name":"Caiazzo, Ilaria"},{"last_name":"Heyl","full_name":"Heyl, Jeremy","first_name":"Jeremy"}],"main_file_link":[{"url":"https://arxiv.org/abs/2107.06828","open_access":"1"}],"scopus_import":"1","publication_identifier":{"issn":["0035-8711"],"eissn":["1365-2966"]},"page":"1389-1397","article_processing_charge":"No","type":"journal_article","day":"28","month":"09","_id":"15206","extern":"1","article_type":"original","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2024-03-26T09:51:55Z","date_updated":"2024-04-02T07:18:07Z","oa":1,"intvolume":"       517","publication":"Monthly Notices of the Royal Astronomical Society","oa_version":"Preprint","doi":"10.1093/mnras/stac2740","volume":517,"year":"2022","publication_status":"published","citation":{"ama":"Rink K, Caiazzo I, Heyl J. Testing general relativity using quasi-periodic oscillations from X-ray black holes: XTE J1550-564 and GRO J1655-40. <i>Monthly Notices of the Royal Astronomical Society</i>. 2022;517(1):1389-1397. doi:<a href=\"https://doi.org/10.1093/mnras/stac2740\">10.1093/mnras/stac2740</a>","mla":"Rink, Katherine, et al. “Testing General Relativity Using Quasi-Periodic Oscillations from X-Ray Black Holes: XTE J1550-564 and GRO J1655-40.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 517, no. 1, Oxford University Press, 2022, pp. 1389–97, doi:<a href=\"https://doi.org/10.1093/mnras/stac2740\">10.1093/mnras/stac2740</a>.","ista":"Rink K, Caiazzo I, Heyl J. 2022. Testing general relativity using quasi-periodic oscillations from X-ray black holes: XTE J1550-564 and GRO J1655-40. Monthly Notices of the Royal Astronomical Society. 517(1), 1389–1397.","short":"K. Rink, I. Caiazzo, J. Heyl, Monthly Notices of the Royal Astronomical Society 517 (2022) 1389–1397.","ieee":"K. Rink, I. Caiazzo, and J. Heyl, “Testing general relativity using quasi-periodic oscillations from X-ray black holes: XTE J1550-564 and GRO J1655-40,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 517, no. 1. Oxford University Press, pp. 1389–1397, 2022.","chicago":"Rink, Katherine, Ilaria Caiazzo, and Jeremy Heyl. “Testing General Relativity Using Quasi-Periodic Oscillations from X-Ray Black Holes: XTE J1550-564 and GRO J1655-40.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2022. <a href=\"https://doi.org/10.1093/mnras/stac2740\">https://doi.org/10.1093/mnras/stac2740</a>.","apa":"Rink, K., Caiazzo, I., &#38; Heyl, J. (2022). Testing general relativity using quasi-periodic oscillations from X-ray black holes: XTE J1550-564 and GRO J1655-40. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stac2740\">https://doi.org/10.1093/mnras/stac2740</a>"},"title":"Testing general relativity using quasi-periodic oscillations from X-ray black holes: XTE J1550-564 and GRO J1655-40","abstract":[{"text":"We use the Relativistic Precession Model (RPM) and quasi-periodic oscillation (QPO) observations from the Rossi X-ray Timing Explorer to derive constraints on the properties of the black holes that power these sources and to test general relativity (GR) in the strong field regime. We build upon past techniques by using pairs of simultaneously measured QPOs, rather than triplets, and by including characteristic frequencies from the broad noise components of the power spectra in our fits. We find the inclusion of these broad noise components causes an overestimate in masses and underestimate in spins compared to values derived independently from optical spectra. We extend the underlying space-time metric to constrain potential deviations from the predictions of GR for astrophysical black holes. To do this, we modify the RPM model to a Kerr–Newman–deSitter space-time and model changes in the radial, ecliptic, and vertical frequencies. We compare our models with X-ray data of XTE J1550-564 and GRO J1655-40 using robust statistical techniques to constrain the parameters of the black holes and the deviations from GR. For both sources, using QPO and characteristic frequency data, we constrain particular deviations from GR to be less than one part per thousand.","lang":"eng"}],"status":"public","issue":"1","publisher":"Oxford University Press","quality_controlled":"1"},{"title":"A dense 0.1-solar-mass star in a 51-minute-orbital-period eclipsing binary","abstract":[{"lang":"eng","text":"Of more than a thousand known cataclysmic variables (CVs), where a white dwarf is accreting from a hydrogen-rich star, only a dozen have orbital periods below 75 minutes1,2,3,4,5,6,7,8,9. One way to achieve these short periods requires the donor star to have undergone substantial nuclear evolution before interacting with the white dwarf10,11,12,13,14, and it is expected that these objects will transition to helium accretion. These transitional CVs have been proposed as progenitors of helium CVs13,14,15,16,17,18. However, no known transitional CV is expected to reach an orbital period short enough to account for most of the helium CV population, leaving the role of this evolutionary pathway unclear. Here we report observations of ZTF J1813+4251, a 51-minute-orbital-period, fully eclipsing binary system consisting of a star with a temperature comparable to that of the Sun but a density 100 times greater owing to its helium-rich composition, accreting onto a white dwarf. Phase-resolved spectra, multi-band light curves and the broadband spectral energy distribution allow us to obtain precise and robust constraints on the masses, radii and temperatures of both components. Evolutionary modelling shows that ZTF J1813+4251 is destined to become a helium CV binary, reaching an orbital period under 20 minutes, rendering ZTF J1813+4251 a previously missing link between helium CV binaries and hydrogen-rich CVs."}],"publisher":"Springer Nature","issue":"7932","status":"public","quality_controlled":"1","doi":"10.1038/s41586-022-05195-x","volume":610,"year":"2022","citation":{"ista":"Burdge KB, El-Badry K, Marsh TR, Rappaport S, Brown WR, Caiazzo I, Chakrabarty D, Dhillon VS, Fuller J, Gänsicke BT, Graham MJ, Kara E, Kulkarni SR, Littlefair SP, Mróz P, Rodríguez-Gil P, Roestel J van, Simcoe RA, Bellm EC, Drake AJ, Dekany RG, Groom SL, Laher RR, Masci FJ, Riddle R, Smith RM, Prince TA. 2022. A dense 0.1-solar-mass star in a 51-minute-orbital-period eclipsing binary. Nature. 610(7932), 467–471.","ama":"Burdge KB, El-Badry K, Marsh TR, et al. A dense 0.1-solar-mass star in a 51-minute-orbital-period eclipsing binary. <i>Nature</i>. 2022;610(7932):467-471. doi:<a href=\"https://doi.org/10.1038/s41586-022-05195-x\">10.1038/s41586-022-05195-x</a>","mla":"Burdge, Kevin B., et al. “A Dense 0.1-Solar-Mass Star in a 51-Minute-Orbital-Period Eclipsing Binary.” <i>Nature</i>, vol. 610, no. 7932, Springer Nature, 2022, pp. 467–71, doi:<a href=\"https://doi.org/10.1038/s41586-022-05195-x\">10.1038/s41586-022-05195-x</a>.","chicago":"Burdge, Kevin B., Kareem El-Badry, Thomas R. Marsh, Saul Rappaport, Warren R. Brown, Ilaria Caiazzo, Deepto Chakrabarty, et al. “A Dense 0.1-Solar-Mass Star in a 51-Minute-Orbital-Period Eclipsing Binary.” <i>Nature</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1038/s41586-022-05195-x\">https://doi.org/10.1038/s41586-022-05195-x</a>.","apa":"Burdge, K. B., El-Badry, K., Marsh, T. R., Rappaport, S., Brown, W. R., Caiazzo, I., … Prince, T. A. (2022). A dense 0.1-solar-mass star in a 51-minute-orbital-period eclipsing binary. <i>Nature</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41586-022-05195-x\">https://doi.org/10.1038/s41586-022-05195-x</a>","short":"K.B. Burdge, K. El-Badry, T.R. Marsh, S. Rappaport, W.R. Brown, I. Caiazzo, D. Chakrabarty, V.S. Dhillon, J. Fuller, B.T. Gänsicke, M.J. Graham, E. Kara, S.R. Kulkarni, S.P. Littlefair, P. Mróz, P. Rodríguez-Gil, J. van Roestel, R.A. Simcoe, E.C. Bellm, A.J. Drake, R.G. Dekany, S.L. Groom, R.R. Laher, F.J. Masci, R. Riddle, R.M. Smith, T.A. Prince, Nature 610 (2022) 467–471.","ieee":"K. B. Burdge <i>et al.</i>, “A dense 0.1-solar-mass star in a 51-minute-orbital-period eclipsing binary,” <i>Nature</i>, vol. 610, no. 7932. Springer Nature, pp. 467–471, 2022."},"publication_status":"published","oa":1,"date_updated":"2024-04-02T07:18:43Z","intvolume":"       610","publication":"Nature","oa_version":"Preprint","month":"10","extern":"1","_id":"15207","article_type":"original","date_created":"2024-03-26T09:52:17Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","type":"journal_article","day":"05","author":[{"last_name":"Burdge","full_name":"Burdge, Kevin B.","first_name":"Kevin B."},{"last_name":"El-Badry","full_name":"El-Badry, Kareem","first_name":"Kareem"},{"last_name":"Marsh","first_name":"Thomas R.","full_name":"Marsh, Thomas R."},{"full_name":"Rappaport, Saul","first_name":"Saul","last_name":"Rappaport"},{"last_name":"Brown","first_name":"Warren R.","full_name":"Brown, Warren R."},{"last_name":"Caiazzo","orcid":"0000-0002-4770-5388","full_name":"Caiazzo, Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d","first_name":"Ilaria"},{"full_name":"Chakrabarty, Deepto","first_name":"Deepto","last_name":"Chakrabarty"},{"last_name":"Dhillon","full_name":"Dhillon, V. S.","first_name":"V. S."},{"first_name":"Jim","full_name":"Fuller, Jim","last_name":"Fuller"},{"last_name":"Gänsicke","full_name":"Gänsicke, Boris T.","first_name":"Boris T."},{"last_name":"Graham","full_name":"Graham, Matthew J.","first_name":"Matthew J."},{"full_name":"Kara, Erin","first_name":"Erin","last_name":"Kara"},{"last_name":"Kulkarni","full_name":"Kulkarni, S. R.","first_name":"S. R."},{"first_name":"S. P.","full_name":"Littlefair, S. P.","last_name":"Littlefair"},{"first_name":"Przemek","full_name":"Mróz, Przemek","last_name":"Mróz"},{"full_name":"Rodríguez-Gil, Pablo","first_name":"Pablo","last_name":"Rodríguez-Gil"},{"last_name":"Roestel","full_name":"Roestel, Jan van","first_name":"Jan van"},{"first_name":"Robert A.","full_name":"Simcoe, Robert A.","last_name":"Simcoe"},{"last_name":"Bellm","first_name":"Eric C.","full_name":"Bellm, Eric C."},{"last_name":"Drake","full_name":"Drake, Andrew J.","first_name":"Andrew J."},{"full_name":"Dekany, Richard G.","first_name":"Richard G.","last_name":"Dekany"},{"full_name":"Groom, Steven L.","first_name":"Steven L.","last_name":"Groom"},{"first_name":"Russ R.","full_name":"Laher, Russ R.","last_name":"Laher"},{"last_name":"Masci","first_name":"Frank J.","full_name":"Masci, Frank J."},{"last_name":"Riddle","full_name":"Riddle, Reed","first_name":"Reed"},{"last_name":"Smith","first_name":"Roger M.","full_name":"Smith, Roger M."},{"first_name":"Thomas A.","full_name":"Prince, Thomas A.","last_name":"Prince"}],"publication_identifier":{"eissn":["1476-4687"],"issn":["0028-0836"]},"scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2210.01809"}],"page":"467-471","language":[{"iso":"eng"}],"arxiv":1,"external_id":{"arxiv":["2210.01809"],"pmid":["36198793"]},"pmid":1,"date_published":"2022-10-05T00:00:00Z","fulldoi":"https://doi.org/10.1038/s41586-022-05195-x"},{"citation":{"mla":"Caiazzo, Ilaria, et al. “Probing Magnetar Emission Mechanisms with X-Ray Spectropolarimetry.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 514, no. 4, Oxford University Press, 2022, pp. 5024–34, doi:<a href=\"https://doi.org/10.1093/mnras/stac1571\">10.1093/mnras/stac1571</a>.","ama":"Caiazzo I, González-Caniulef D, Heyl J, Fernández R. Probing magnetar emission mechanisms with X-ray spectropolarimetry. <i>Monthly Notices of the Royal Astronomical Society</i>. 2022;514(4):5024-5034. doi:<a href=\"https://doi.org/10.1093/mnras/stac1571\">10.1093/mnras/stac1571</a>","ista":"Caiazzo I, González-Caniulef D, Heyl J, Fernández R. 2022. Probing magnetar emission mechanisms with X-ray spectropolarimetry. Monthly Notices of the Royal Astronomical Society. 514(4), 5024–5034.","ieee":"I. Caiazzo, D. González-Caniulef, J. Heyl, and R. Fernández, “Probing magnetar emission mechanisms with X-ray spectropolarimetry,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 514, no. 4. Oxford University Press, pp. 5024–5034, 2022.","short":"I. Caiazzo, D. González-Caniulef, J. Heyl, R. Fernández, Monthly Notices of the Royal Astronomical Society 514 (2022) 5024–5034.","apa":"Caiazzo, I., González-Caniulef, D., Heyl, J., &#38; Fernández, R. (2022). Probing magnetar emission mechanisms with X-ray spectropolarimetry. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stac1571\">https://doi.org/10.1093/mnras/stac1571</a>","chicago":"Caiazzo, Ilaria, Denis González-Caniulef, Jeremy Heyl, and Rodrigo Fernández. “Probing Magnetar Emission Mechanisms with X-Ray Spectropolarimetry.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2022. <a href=\"https://doi.org/10.1093/mnras/stac1571\">https://doi.org/10.1093/mnras/stac1571</a>."},"publication_status":"published","year":"2022","volume":514,"doi":"10.1093/mnras/stac1571","quality_controlled":"1","issue":"4","status":"public","publisher":"Oxford University Press","title":"Probing magnetar emission mechanisms with X-ray spectropolarimetry","abstract":[{"lang":"eng","text":"This year, a new era of observations of compact objects in X-ray polarization is commencing. Among the key targets for the Imaging X-ray Polarimetry Explorer mission are the magnetars 4U 0142+61 and 1RXS J170849.0-400910. Here, we present detailed predictions of the expected polarization from these sources that incorporate realistic models of emission physics at the surface (gaseous or condensed), the temperature distribution on the surface, general relativity, quantum electrodynamics, and scattering in the magnetosphere, accounting for the broad-band spectral energy distribution from below 1 keV to nearly 100 keV. We find that either atmospheres or condensed surfaces can account for the emission at a few keV. In both cases, either a small hot polar cap or scattering is required to account for the emission at 5–10 keV and, above 10 keV, scattering by a hard population of electrons can account for the rising power in the hard X-rays observed in many magnetars in quiescence. Although these different scenarios result in very similar spectral energy distributions, they generate dramatically different polarization signatures from 2 to 8 keV, which is the range of sensitivity of the Imaging X-ray Polarimetry Explorer. Observations of these sources in X-ray polarization will therefore probe the emission from magnetars in an essentially new way."}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2024-03-26T09:52:41Z","article_type":"original","_id":"15208","extern":"1","month":"06","oa_version":"Preprint","publication":"Monthly Notices of the Royal Astronomical Society","intvolume":"       514","date_updated":"2024-10-14T12:32:39Z","oa":1,"page":"5024-5034","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2112.03401"}],"scopus_import":"1","publication_identifier":{"issn":["0035-8711"],"eissn":["1365-2966"]},"author":[{"orcid":"0000-0002-4770-5388","last_name":"Caiazzo","full_name":"Caiazzo, Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d","first_name":"Ilaria"},{"first_name":"Denis","full_name":"González-Caniulef, Denis","last_name":"González-Caniulef"},{"first_name":"Jeremy","full_name":"Heyl, Jeremy","last_name":"Heyl"},{"last_name":"Fernández","full_name":"Fernández, Rodrigo","first_name":"Rodrigo"}],"day":"09","type":"journal_article","article_processing_charge":"No","fulldoi":"https://doi.org/10.1093/mnras/stac1571","date_published":"2022-06-09T00:00:00Z","external_id":{"arxiv":["2112.03401"]},"arxiv":1,"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"language":[{"iso":"eng"}]},{"page":"4111-4119","main_file_link":[{"url":"https://arxiv.org/abs/2202.12902","open_access":"1"}],"scopus_import":"1","publication_identifier":{"issn":["0035-8711"],"eissn":["1365-2966"]},"author":[{"last_name":"Ginzburg","first_name":"Sivan","full_name":"Ginzburg, Sivan"},{"full_name":"Fuller, Jim","first_name":"Jim","last_name":"Fuller"},{"first_name":"Adela","full_name":"Kawka, Adela","last_name":"Kawka"},{"last_name":"Caiazzo","orcid":"0000-0002-4770-5388","full_name":"Caiazzo, Ilaria","first_name":"Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d"}],"day":"16","type":"journal_article","article_processing_charge":"No","fulldoi":"https://doi.org/10.1093/mnras/stac1363","date_published":"2022-05-16T00:00:00Z","external_id":{"arxiv":["2202.12902"]},"arxiv":1,"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"language":[{"iso":"eng"}],"citation":{"ista":"Ginzburg S, Fuller J, Kawka A, Caiazzo I. 2022. Slow convection and fast rotation in crystallization-driven white dwarf dynamos. Monthly Notices of the Royal Astronomical Society. 514(3), 4111–4119.","mla":"Ginzburg, Sivan, et al. “Slow Convection and Fast Rotation in Crystallization-Driven White Dwarf Dynamos.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 514, no. 3, Oxford University Press, 2022, pp. 4111–19, doi:<a href=\"https://doi.org/10.1093/mnras/stac1363\">10.1093/mnras/stac1363</a>.","ama":"Ginzburg S, Fuller J, Kawka A, Caiazzo I. Slow convection and fast rotation in crystallization-driven white dwarf dynamos. <i>Monthly Notices of the Royal Astronomical Society</i>. 2022;514(3):4111-4119. doi:<a href=\"https://doi.org/10.1093/mnras/stac1363\">10.1093/mnras/stac1363</a>","apa":"Ginzburg, S., Fuller, J., Kawka, A., &#38; Caiazzo, I. (2022). Slow convection and fast rotation in crystallization-driven white dwarf dynamos. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stac1363\">https://doi.org/10.1093/mnras/stac1363</a>","chicago":"Ginzburg, Sivan, Jim Fuller, Adela Kawka, and Ilaria Caiazzo. “Slow Convection and Fast Rotation in Crystallization-Driven White Dwarf Dynamos.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2022. <a href=\"https://doi.org/10.1093/mnras/stac1363\">https://doi.org/10.1093/mnras/stac1363</a>.","ieee":"S. Ginzburg, J. Fuller, A. Kawka, and I. Caiazzo, “Slow convection and fast rotation in crystallization-driven white dwarf dynamos,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 514, no. 3. Oxford University Press, pp. 4111–4119, 2022.","short":"S. Ginzburg, J. Fuller, A. Kawka, I. Caiazzo, Monthly Notices of the Royal Astronomical Society 514 (2022) 4111–4119."},"publication_status":"published","year":"2022","volume":514,"doi":"10.1093/mnras/stac1363","quality_controlled":"1","issue":"3","status":"public","publisher":"Oxford University Press","abstract":[{"lang":"eng","text":"It has been recently suggested that white dwarfs generate magnetic fields in a process analogous to the Earth. The crystallization of the core creates a compositional inversion that drives convection, and combined with rotation, this can sustain a magnetic dynamo. We reanalyse the dynamo mechanism, arising from the slow crystallization of the core, and find convective turnover times tconv of weeks to months – longer by orders of magnitude than previously thought. With white dwarf spin periods P ≪ tconv, crystallization-driven dynamos are almost always in the fast-rotating regime, where the magnetic field B is at least in equipartition with the convective motion and is possibly further enhanced by a factor of B ∝ (tconv/P)1/2, depending on the assumed dynamo scaling law. We track the growth of the crystallized core using MESA and compute the magnetic field B(Teff) as a function of the white dwarf’s effective temperature Teff. We compare this prediction with observations and show that crystallization-driven dynamos can explain some – but not all – of the ∼MG magnetic fields measured for single white dwarfs, as well as the stronger fields measured for white dwarfs in cataclysmic variables, which were spun up by mass accretion to short P. Our B(Teff) curves might also explain the clustering of white dwarfs with Balmer emission lines around Teff ≈ 7500 K."}],"title":"Slow convection and fast rotation in crystallization-driven white dwarf dynamos","date_created":"2024-03-26T09:53:04Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_type":"original","extern":"1","_id":"15209","month":"05","publication":"Monthly Notices of the Royal Astronomical Society","oa_version":"Preprint","intvolume":"       514","date_updated":"2024-04-02T07:24:15Z","oa":1},{"author":[{"last_name":"Richer","full_name":"Richer, Harvey B.","first_name":"Harvey B."},{"full_name":"Cohen, Roger E.","first_name":"Roger E.","last_name":"Cohen"},{"last_name":"Heyl","first_name":"Jeremy","full_name":"Heyl, Jeremy"},{"last_name":"Kalirai","full_name":"Kalirai, Jason","first_name":"Jason"},{"last_name":"Caiazzo","orcid":"0000-0002-4770-5388","full_name":"Caiazzo, Ilaria","first_name":"Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d"},{"first_name":"Matteo","full_name":"Correnti, Matteo","last_name":"Correnti"},{"first_name":"Jeffrey","full_name":"Cummings, Jeffrey","last_name":"Cummings"},{"full_name":"Goudfrooij, Paul","first_name":"Paul","last_name":"Goudfrooij"},{"first_name":"Bradley M. S.","full_name":"Hansen, Bradley M. S.","last_name":"Hansen"},{"last_name":"Peeples","first_name":"Molly","full_name":"Peeples, Molly"},{"last_name":"Sabbi","full_name":"Sabbi, Elena","first_name":"Elena"},{"full_name":"Tremblay, Pier-Emmanuel","first_name":"Pier-Emmanuel","last_name":"Tremblay"},{"last_name":"Williams","full_name":"Williams, Benjamin","first_name":"Benjamin"}],"main_file_link":[{"url":"https://doi.org/10.3847/2041-8213/ac6585","open_access":"1"}],"scopus_import":"1","publication_identifier":{"issn":["2041-8205"],"eissn":["2041-8213"]},"article_number":"L20","article_processing_charge":"No","type":"journal_article","day":"30","fulldoi":"https://doi.org/10.3847/2041-8213/ac6585","language":[{"iso":"eng"}],"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"arxiv":1,"external_id":{"arxiv":["2203.11264"]},"date_published":"2022-05-30T00:00:00Z","doi":"10.3847/2041-8213/ac6585","tmp":{"image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"year":"2022","volume":931,"publication_status":"published","citation":{"mla":"Richer, Harvey B., et al. “When Do Stars Go Boom?” <i>The Astrophysical Journal Letters</i>, vol. 931, no. 2, L20, American Astronomical Society, 2022, doi:<a href=\"https://doi.org/10.3847/2041-8213/ac6585\">10.3847/2041-8213/ac6585</a>.","ama":"Richer HB, Cohen RE, Heyl J, et al. When do stars go boom? <i>The Astrophysical Journal Letters</i>. 2022;931(2). doi:<a href=\"https://doi.org/10.3847/2041-8213/ac6585\">10.3847/2041-8213/ac6585</a>","ista":"Richer HB, Cohen RE, Heyl J, Kalirai J, Caiazzo I, Correnti M, Cummings J, Goudfrooij P, Hansen BMS, Peeples M, Sabbi E, Tremblay P-E, Williams B. 2022. When do stars go boom? The Astrophysical Journal Letters. 931(2), L20.","ieee":"H. B. Richer <i>et al.</i>, “When do stars go boom?,” <i>The Astrophysical Journal Letters</i>, vol. 931, no. 2. American Astronomical Society, 2022.","short":"H.B. Richer, R.E. Cohen, J. Heyl, J. Kalirai, I. Caiazzo, M. Correnti, J. Cummings, P. Goudfrooij, B.M.S. Hansen, M. Peeples, E. Sabbi, P.-E. Tremblay, B. Williams, The Astrophysical Journal Letters 931 (2022).","apa":"Richer, H. B., Cohen, R. E., Heyl, J., Kalirai, J., Caiazzo, I., Correnti, M., … Williams, B. (2022). When do stars go boom? <i>The Astrophysical Journal Letters</i>. American Astronomical Society. <a href=\"https://doi.org/10.3847/2041-8213/ac6585\">https://doi.org/10.3847/2041-8213/ac6585</a>","chicago":"Richer, Harvey B., Roger E. Cohen, Jeremy Heyl, Jason Kalirai, Ilaria Caiazzo, Matteo Correnti, Jeffrey Cummings, et al. “When Do Stars Go Boom?” <i>The Astrophysical Journal Letters</i>. American Astronomical Society, 2022. <a href=\"https://doi.org/10.3847/2041-8213/ac6585\">https://doi.org/10.3847/2041-8213/ac6585</a>."},"abstract":[{"lang":"eng","text":"The maximum mass of a star that can produce a white dwarf (WD) is an important astrophysical quantity. One of the best approaches to establishing this limit is to search for WDs in young star clusters in which only massive stars have had time to evolve and where the mass of the progenitor can be established from the cooling time of the WD together with the age of the cluster. Searches in young Milky Way clusters have not thus far yielded WD members more massive than about 1.1 M⊙, well below the Chandrasekhar mass of 1.38 M⊙, nor progenitors with masses in excess of about 6 M⊙. However, the hunt for potentially massive WDs that escaped their cluster environs is yielding interesting candidates. To expand the cluster sample further, we used HST to survey four young and massive star clusters in the Magellanic Clouds for bright WDs that could have evolved from stars as massive as 10 M⊙. We located five potential WD candidates in the oldest of the four clusters examined, the first extragalactic single WDs thus far discovered. As these hot WDs are very faint at optical wavelengths, final confirmation will likely have to await spectroscopy with 30 m class telescopes."}],"title":"When do stars go boom?","status":"public","issue":"2","publisher":"American Astronomical Society","quality_controlled":"1","license":"https://creativecommons.org/licenses/by/4.0/","month":"05","extern":"1","_id":"15210","article_type":"original","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2024-03-26T10:28:48Z","date_updated":"2024-04-02T07:25:50Z","oa":1,"intvolume":"       931","publication":"The Astrophysical Journal Letters","oa_version":"Published Version"},{"month":"05","_id":"15211","extern":"1","article_type":"original","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2024-03-26T10:29:26Z","oa":1,"date_updated":"2024-04-02T07:26:19Z","intvolume":"       605","oa_version":"Preprint","publication":"Nature","doi":"10.1038/s41586-022-04551-1","volume":605,"year":"2022","publication_status":"published","citation":{"short":"K.B. Burdge, T.R. Marsh, J. Fuller, E.C. Bellm, I. Caiazzo, D. Chakrabarty, M.W. Coughlin, K. De, V.S. Dhillon, M.J. Graham, P. Rodríguez-Gil, A.D. Jaodand, D.L. Kaplan, E. Kara, A.K.H. Kong, S.R. Kulkarni, K.-L. Li, S.P. Littlefair, W.A. Majid, P. Mróz, A.B. Pearlman, E.S. Phinney, J. van Roestel, R.A. Simcoe, I. Andreoni, A.J. Drake, R.G. Dekany, D.A. Duev, E.C. Kool, A.A. Mahabal, M.S. Medford, R. Riddle, T.A. Prince, Nature 605 (2022) 41–45.","ieee":"K. B. Burdge <i>et al.</i>, “A 62-minute orbital period black widow binary in a wide hierarchical triple,” <i>Nature</i>, vol. 605, no. 7908. Springer Nature, pp. 41–45, 2022.","chicago":"Burdge, Kevin B., Thomas R. Marsh, Jim Fuller, Eric C. Bellm, Ilaria Caiazzo, Deepto Chakrabarty, Michael W. Coughlin, et al. “A 62-Minute Orbital Period Black Widow Binary in a Wide Hierarchical Triple.” <i>Nature</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1038/s41586-022-04551-1\">https://doi.org/10.1038/s41586-022-04551-1</a>.","apa":"Burdge, K. B., Marsh, T. R., Fuller, J., Bellm, E. C., Caiazzo, I., Chakrabarty, D., … Prince, T. A. (2022). A 62-minute orbital period black widow binary in a wide hierarchical triple. <i>Nature</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41586-022-04551-1\">https://doi.org/10.1038/s41586-022-04551-1</a>","ama":"Burdge KB, Marsh TR, Fuller J, et al. A 62-minute orbital period black widow binary in a wide hierarchical triple. <i>Nature</i>. 2022;605(7908):41-45. doi:<a href=\"https://doi.org/10.1038/s41586-022-04551-1\">10.1038/s41586-022-04551-1</a>","mla":"Burdge, Kevin B., et al. “A 62-Minute Orbital Period Black Widow Binary in a Wide Hierarchical Triple.” <i>Nature</i>, vol. 605, no. 7908, Springer Nature, 2022, pp. 41–45, doi:<a href=\"https://doi.org/10.1038/s41586-022-04551-1\">10.1038/s41586-022-04551-1</a>.","ista":"Burdge KB, Marsh TR, Fuller J, Bellm EC, Caiazzo I, Chakrabarty D, Coughlin MW, De K, Dhillon VS, Graham MJ, Rodríguez-Gil P, Jaodand AD, Kaplan DL, Kara E, Kong AKH, Kulkarni SR, Li K-L, Littlefair SP, Majid WA, Mróz P, Pearlman AB, Phinney ES, Roestel J van, Simcoe RA, Andreoni I, Drake AJ, Dekany RG, Duev DA, Kool EC, Mahabal AA, Medford MS, Riddle R, Prince TA. 2022. A 62-minute orbital period black widow binary in a wide hierarchical triple. Nature. 605(7908), 41–45."},"title":"A 62-minute orbital period black widow binary in a wide hierarchical triple","abstract":[{"text":"Over a dozen millisecond pulsars are ablating low-mass companions in close binary systems. In the original ‘black widow’, the eight-hour orbital period eclipsing pulsar PSR J1959+2048 (PSR B1957+20)1, high-energy emission originating from the pulsar2 is irradiating and may eventually destroy3 a low-mass companion. These systems are not only physical laboratories that reveal the interesting results of exposing a close companion star to the relativistic energy output of a pulsar, but are also believed to harbour some of the most massive neutron stars4, allowing for robust tests of the neutron star equation of state. Here we report observations of ZTF J1406+1222, a wide hierarchical triple hosting a 62-minute orbital period black widow candidate, the optical flux of which varies by a factor of more than ten. ZTF J1406+1222 pushes the boundaries of evolutionary models5, falling below the 80-minute minimum orbital period of hydrogen-rich systems. The wide tertiary companion is a rare low-metallicity cool subdwarf star, and the system has a Galactic halo orbit consistent with passing near the Galactic Centre, making it a probe of formation channels, neutron star kick physics6 and binary evolution.","lang":"eng"}],"publisher":"Springer Nature","issue":"7908","status":"public","quality_controlled":"1","fulldoi":"https://doi.org/10.1038/s41586-022-04551-1","language":[{"iso":"eng"}],"keyword":["Multidisciplinary"],"arxiv":1,"pmid":1,"external_id":{"pmid":["35508781"],"arxiv":["2205.02278"]},"date_published":"2022-05-04T00:00:00Z","author":[{"first_name":"Kevin B.","full_name":"Burdge, Kevin B.","last_name":"Burdge"},{"last_name":"Marsh","first_name":"Thomas R.","full_name":"Marsh, Thomas R."},{"full_name":"Fuller, Jim","first_name":"Jim","last_name":"Fuller"},{"full_name":"Bellm, Eric C.","first_name":"Eric C.","last_name":"Bellm"},{"orcid":"0000-0002-4770-5388","last_name":"Caiazzo","full_name":"Caiazzo, Ilaria","first_name":"Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d"},{"first_name":"Deepto","full_name":"Chakrabarty, Deepto","last_name":"Chakrabarty"},{"first_name":"Michael W.","full_name":"Coughlin, Michael W.","last_name":"Coughlin"},{"first_name":"Kishalay","full_name":"De, Kishalay","last_name":"De"},{"full_name":"Dhillon, V. S.","first_name":"V. S.","last_name":"Dhillon"},{"full_name":"Graham, Matthew J.","first_name":"Matthew J.","last_name":"Graham"},{"full_name":"Rodríguez-Gil, Pablo","first_name":"Pablo","last_name":"Rodríguez-Gil"},{"full_name":"Jaodand, Amruta D.","first_name":"Amruta D.","last_name":"Jaodand"},{"last_name":"Kaplan","full_name":"Kaplan, David L.","first_name":"David L."},{"first_name":"Erin","full_name":"Kara, Erin","last_name":"Kara"},{"first_name":"Albert K. H.","full_name":"Kong, Albert K. H.","last_name":"Kong"},{"first_name":"S. R.","full_name":"Kulkarni, S. R.","last_name":"Kulkarni"},{"last_name":"Li","full_name":"Li, Kwan-Lok","first_name":"Kwan-Lok"},{"first_name":"S. P.","full_name":"Littlefair, S. P.","last_name":"Littlefair"},{"first_name":"Walid A.","full_name":"Majid, Walid A.","last_name":"Majid"},{"first_name":"Przemek","full_name":"Mróz, Przemek","last_name":"Mróz"},{"full_name":"Pearlman, Aaron B.","first_name":"Aaron B.","last_name":"Pearlman"},{"last_name":"Phinney","first_name":"E. S.","full_name":"Phinney, E. S."},{"first_name":"Jan van","full_name":"Roestel, Jan van","last_name":"Roestel"},{"last_name":"Simcoe","first_name":"Robert A.","full_name":"Simcoe, Robert A."},{"last_name":"Andreoni","full_name":"Andreoni, Igor","first_name":"Igor"},{"last_name":"Drake","first_name":"Andrew J.","full_name":"Drake, Andrew J."},{"last_name":"Dekany","full_name":"Dekany, Richard G.","first_name":"Richard G."},{"last_name":"Duev","first_name":"Dmitry A.","full_name":"Duev, Dmitry A."},{"last_name":"Kool","first_name":"Erik C.","full_name":"Kool, Erik C."},{"first_name":"Ashish A.","full_name":"Mahabal, Ashish A.","last_name":"Mahabal"},{"first_name":"Michael S.","full_name":"Medford, Michael S.","last_name":"Medford"},{"last_name":"Riddle","full_name":"Riddle, Reed","first_name":"Reed"},{"last_name":"Prince","full_name":"Prince, Thomas A.","first_name":"Thomas A."}],"scopus_import":"1","publication_identifier":{"issn":["0028-0836"],"eissn":["1476-4687"]},"main_file_link":[{"url":"https://arxiv.org/abs/2205.02278","open_access":"1"}],"page":"41-45","article_processing_charge":"No","type":"journal_article","day":"04"},{"date_created":"2024-03-26T10:31:05Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_type":"original","extern":"1","_id":"15212","month":"02","publication":"Monthly Notices of the Royal Astronomical Society","oa_version":"Preprint","intvolume":"       511","oa":1,"date_updated":"2024-04-02T07:26:50Z","publication_status":"published","citation":{"ieee":"L. Fleury, I. Caiazzo, and J. Heyl, “The cooling of massive white dwarfs from <i>Gaia</i> EDR3,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 511, no. 4. Oxford University Press, pp. 5984–5993, 2022.","short":"L. Fleury, I. Caiazzo, J. Heyl, Monthly Notices of the Royal Astronomical Society 511 (2022) 5984–5993.","apa":"Fleury, L., Caiazzo, I., &#38; Heyl, J. (2022). The cooling of massive white dwarfs from <i>Gaia</i> EDR3. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stac458\">https://doi.org/10.1093/mnras/stac458</a>","chicago":"Fleury, Leesa, Ilaria Caiazzo, and Jeremy Heyl. “The Cooling of Massive White Dwarfs from <i>Gaia</i> EDR3.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2022. <a href=\"https://doi.org/10.1093/mnras/stac458\">https://doi.org/10.1093/mnras/stac458</a>.","mla":"Fleury, Leesa, et al. “The Cooling of Massive White Dwarfs from <i>Gaia</i> EDR3.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 511, no. 4, Oxford University Press, 2022, pp. 5984–93, doi:<a href=\"https://doi.org/10.1093/mnras/stac458\">10.1093/mnras/stac458</a>.","ama":"Fleury L, Caiazzo I, Heyl J. The cooling of massive white dwarfs from <i>Gaia</i> EDR3. <i>Monthly Notices of the Royal Astronomical Society</i>. 2022;511(4):5984-5993. doi:<a href=\"https://doi.org/10.1093/mnras/stac458\">10.1093/mnras/stac458</a>","ista":"Fleury L, Caiazzo I, Heyl J. 2022. The cooling of massive white dwarfs from <i>Gaia</i> EDR3. Monthly Notices of the Royal Astronomical Society. 511(4), 5984–5993."},"year":"2022","volume":511,"doi":"10.1093/mnras/stac458","quality_controlled":"1","publisher":"Oxford University Press","status":"public","issue":"4","abstract":[{"text":"We determine the distribution of cooling ages of massive Gaia EDR3 white dwarfs identified with over 90 per cent probability within 200 pc and with mass in the range 0.95–1.25 M⊙. Using three sets of publicly available models, we consider sub-samples of these white dwarfs sorted into three equally spaced mass bins. Under the assumption of a constant white dwarf formation rate, we find an excess of white dwarfs, both along the Q branch and below it, corresponding respectively to stars that are in the process of freezing and those that are completely frozen. We compare the cooling age distributions for each of these bins to the recently determined time-varying star formation rate of Gaia DR2 main sequence stars. For white dwarfs in the two lightest mass bins, spanning the mass range 0.95–1.15 M⊙, we find that the cumulative cooling age distribution is statistically consistent with the expectation from the star formation rate. For white dwarfs in the heaviest mass bin, 1.15–1.25 M⊙, we find that their cumulative distribution is inconsistent with the star formation rate for all of the models considered; instead, we find that their cooling age distribution is well fitted by a linear combination of the distribution expected for single stellar evolution products and the distribution expected for double white dwarf merger products when approximately 40–50 per cent of the 1.15–1.25 M⊙ white dwarfs that formed over the past 4 Gyr are produced through double white dwarf mergers.","lang":"eng"}],"title":"The cooling of massive white dwarfs from <i>Gaia</i> EDR3","fulldoi":"https://doi.org/10.1093/mnras/stac458","date_published":"2022-02-21T00:00:00Z","external_id":{"arxiv":["2110.00598"]},"arxiv":1,"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"language":[{"iso":"eng"}],"page":"5984-5993","scopus_import":"1","publication_identifier":{"eissn":["1365-2966"],"issn":["0035-8711"]},"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2110.00598"}],"author":[{"full_name":"Fleury, Leesa","first_name":"Leesa","last_name":"Fleury"},{"last_name":"Caiazzo","orcid":"0000-0002-4770-5388","full_name":"Caiazzo, Ilaria","first_name":"Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d"},{"last_name":"Heyl","full_name":"Heyl, Jeremy","first_name":"Jeremy"}],"day":"21","type":"journal_article","article_processing_charge":"No"},{"intvolume":"       926","publication":"The Astrophysical Journal Letters","oa_version":"Published Version","oa":1,"date_updated":"2024-04-02T07:27:20Z","article_type":"original","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2024-03-26T10:31:25Z","month":"02","extern":"1","_id":"15213","publisher":"American Astronomical Society","issue":"2","status":"public","quality_controlled":"1","title":"The ultramassive white dwarfs of the Alpha Persei cluster","abstract":[{"text":"We searched through the entire Gaia EDR3 candidate white dwarf catalog for stars with proper motions and positions that are consistent with them having escaped from the Alpha Persei cluster within the past 81 Myr, the age of the cluster. In this search we found five candidate white dwarf escapees from Alpha Persei and obtained spectra for all of them. We confirm that three are massive white dwarfs sufficiently young to have originated in the cluster. All these are more massive than any white dwarf previously associated with a cluster using Gaia astrometry, and possess some of the most massive progenitors. In particular, the white dwarf Gaia EDR3 4395978097863572, which lies within 25 pc of the cluster center, has a mass of about 1.20 solar masses and evolved from an 8.5 solar-mass star, pushing the upper limit for white dwarf formation from a single massive star, while still leaving a substantial gap between the resulting white dwarf mass and the Chandrasekhar mass.","lang":"eng"}],"tmp":{"image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"volume":926,"year":"2022","citation":{"chicago":"Miller, David R., Ilaria Caiazzo, Jeremy Heyl, Harvey B. Richer, and Pier-Emmanuel Tremblay. “The Ultramassive White Dwarfs of the Alpha Persei Cluster.” <i>The Astrophysical Journal Letters</i>. American Astronomical Society, 2022. <a href=\"https://doi.org/10.3847/2041-8213/ac50a5\">https://doi.org/10.3847/2041-8213/ac50a5</a>.","apa":"Miller, D. R., Caiazzo, I., Heyl, J., Richer, H. B., &#38; Tremblay, P.-E. (2022). The ultramassive white dwarfs of the Alpha Persei cluster. <i>The Astrophysical Journal Letters</i>. American Astronomical Society. <a href=\"https://doi.org/10.3847/2041-8213/ac50a5\">https://doi.org/10.3847/2041-8213/ac50a5</a>","short":"D.R. Miller, I. Caiazzo, J. Heyl, H.B. Richer, P.-E. Tremblay, The Astrophysical Journal Letters 926 (2022).","ieee":"D. R. Miller, I. Caiazzo, J. Heyl, H. B. Richer, and P.-E. Tremblay, “The ultramassive white dwarfs of the Alpha Persei cluster,” <i>The Astrophysical Journal Letters</i>, vol. 926, no. 2. American Astronomical Society, 2022.","ista":"Miller DR, Caiazzo I, Heyl J, Richer HB, Tremblay P-E. 2022. The ultramassive white dwarfs of the Alpha Persei cluster. The Astrophysical Journal Letters. 926(2), L24.","ama":"Miller DR, Caiazzo I, Heyl J, Richer HB, Tremblay P-E. The ultramassive white dwarfs of the Alpha Persei cluster. <i>The Astrophysical Journal Letters</i>. 2022;926(2). doi:<a href=\"https://doi.org/10.3847/2041-8213/ac50a5\">10.3847/2041-8213/ac50a5</a>","mla":"Miller, David R., et al. “The Ultramassive White Dwarfs of the Alpha Persei Cluster.” <i>The Astrophysical Journal Letters</i>, vol. 926, no. 2, L24, American Astronomical Society, 2022, doi:<a href=\"https://doi.org/10.3847/2041-8213/ac50a5\">10.3847/2041-8213/ac50a5</a>."},"publication_status":"published","doi":"10.3847/2041-8213/ac50a5","arxiv":1,"date_published":"2022-02-21T00:00:00Z","external_id":{"arxiv":["2110.09668"]},"language":[{"iso":"eng"}],"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"fulldoi":"https://doi.org/10.3847/2041-8213/ac50a5","day":"21","article_processing_charge":"No","type":"journal_article","article_number":"L24","author":[{"last_name":"Miller","first_name":"David R.","full_name":"Miller, David R."},{"id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d","first_name":"Ilaria","full_name":"Caiazzo, Ilaria","orcid":"0000-0002-4770-5388","last_name":"Caiazzo"},{"full_name":"Heyl, Jeremy","first_name":"Jeremy","last_name":"Heyl"},{"first_name":"Harvey B.","full_name":"Richer, Harvey B.","last_name":"Richer"},{"first_name":"Pier-Emmanuel","full_name":"Tremblay, Pier-Emmanuel","last_name":"Tremblay"}],"scopus_import":"1","publication_identifier":{"issn":["2041-8205"],"eissn":["2041-8213"]},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.3847/2041-8213/ac50a5"}]},{"quality_controlled":"1","publisher":"American Astronomical Society","issue":"2","status":"public","abstract":[{"text":"We search through an eight million cubic parsec volume surrounding the Pleiades star cluster and the Sun to identify both the current and past members of the Pleiades cluster within the Gaia EDR3 data set. We find nearly 1300 current cluster members and 289 former cluster candidates. Many of these candidates lie well in front of or behind the cluster from our point of view, so formerly they were considered cluster members, but their parallaxes put them more than 10 pc from the center of the cluster today. Over the past 100 Myr we estimate that the cluster has lost twenty percent of its mass including two massive white dwarf stars and the α2 Canum Venaticorum type variable star, 41 Tau. All three white dwarfs associated with the cluster are massive (1.01–1.06 M⊙) and have progenitors with main-sequence masses of about six solar masses. Although we did not associate any giant stars with the cluster, the cooling time of the oldest white dwarf of 60 Myr gives a firm lower limit on the age of the cluster.","lang":"eng"}],"title":"Reconstructing the Pleiades with Gaia EDR3","citation":{"short":"J. Heyl, I. Caiazzo, H.B. Richer, The Astrophysical Journal 926 (2022).","ieee":"J. Heyl, I. Caiazzo, and H. B. Richer, “Reconstructing the Pleiades with Gaia EDR3,” <i>The Astrophysical Journal</i>, vol. 926, no. 2. American Astronomical Society, 2022.","chicago":"Heyl, Jeremy, Ilaria Caiazzo, and Harvey B. Richer. “Reconstructing the Pleiades with Gaia EDR3.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2022. <a href=\"https://doi.org/10.3847/1538-4357/ac45fc\">https://doi.org/10.3847/1538-4357/ac45fc</a>.","apa":"Heyl, J., Caiazzo, I., &#38; Richer, H. B. (2022). Reconstructing the Pleiades with Gaia EDR3. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.3847/1538-4357/ac45fc\">https://doi.org/10.3847/1538-4357/ac45fc</a>","ama":"Heyl J, Caiazzo I, Richer HB. Reconstructing the Pleiades with Gaia EDR3. <i>The Astrophysical Journal</i>. 2022;926(2). doi:<a href=\"https://doi.org/10.3847/1538-4357/ac45fc\">10.3847/1538-4357/ac45fc</a>","mla":"Heyl, Jeremy, et al. “Reconstructing the Pleiades with Gaia EDR3.” <i>The Astrophysical Journal</i>, vol. 926, no. 2, 132, American Astronomical Society, 2022, doi:<a href=\"https://doi.org/10.3847/1538-4357/ac45fc\">10.3847/1538-4357/ac45fc</a>.","ista":"Heyl J, Caiazzo I, Richer HB. 2022. Reconstructing the Pleiades with Gaia EDR3. The Astrophysical Journal. 926(2), 132."},"publication_status":"published","tmp":{"image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"year":"2022","volume":926,"doi":"10.3847/1538-4357/ac45fc","oa_version":"Published Version","publication":"The Astrophysical Journal","intvolume":"       926","oa":1,"date_updated":"2024-04-02T07:27:52Z","date_created":"2024-03-26T10:31:44Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_type":"original","extern":"1","_id":"15214","month":"02","day":"18","type":"journal_article","article_processing_charge":"No","article_number":"132","publication_identifier":{"eissn":["1538-4357"],"issn":["0004-637X"]},"scopus_import":"1","main_file_link":[{"url":"https://doi.org/10.3847/1538-4357/ac45fc","open_access":"1"}],"author":[{"full_name":"Heyl, Jeremy","first_name":"Jeremy","last_name":"Heyl"},{"first_name":"Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d","full_name":"Caiazzo, Ilaria","orcid":"0000-0002-4770-5388","last_name":"Caiazzo"},{"first_name":"Harvey B.","full_name":"Richer, Harvey B.","last_name":"Richer"}],"date_published":"2022-02-18T00:00:00Z","external_id":{"arxiv":["2110.03837"]},"arxiv":1,"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"language":[{"iso":"eng"}],"fulldoi":"https://doi.org/10.3847/1538-4357/ac45fc"},{"external_id":{"pmid":["34414600"]},"date_published":"2022-01-01T00:00:00Z","pmid":1,"keyword":["Molecular Biology","Biochemistry","Structural Biology"],"language":[{"iso":"eng"}],"fulldoi":"https://doi.org/10.1002/prot.26217","day":"01","type":"journal_article","article_processing_charge":"No","page":"258-269","corr_author":"1","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1101/2020.09.18.304337"}],"publication_identifier":{"issn":["0887-3585"],"eissn":["1097-0134"]},"author":[{"full_name":"Gisonno, Romina A.","first_name":"Romina A.","last_name":"Gisonno"},{"last_name":"Masson","orcid":"0000-0002-2634-6283","full_name":"Masson, Tomas","first_name":"Tomas","id":"93ac43e8-8599-11eb-9b86-f6efb0a4c207"},{"last_name":"Ramella","first_name":"Nahuel A.","full_name":"Ramella, Nahuel A."},{"first_name":"Exequiel E.","full_name":"Barrera, Exequiel E.","last_name":"Barrera"},{"first_name":"Víctor","full_name":"Romanowski, Víctor","last_name":"Romanowski"},{"first_name":"M. Alejandra","full_name":"Tricerri, M. Alejandra","last_name":"Tricerri"}],"publication":"Proteins: Structure, Function, and Bioinformatics","oa_version":"Preprint","intvolume":"        90","date_updated":"2024-10-09T21:08:44Z","oa":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2024-04-03T07:49:53Z","department":[{"_id":"MaJö"}],"article_type":"original","_id":"15268","month":"01","quality_controlled":"1","issue":"1","status":"public","publisher":"Wiley","abstract":[{"lang":"eng","text":"Apolipoprotein A‐I (apoA‐I) has a key function in the reverse cholesterol transport. However, aggregation of apoA‐I single point mutants can lead to hereditary amyloid pathology. Although several studies have tackled the biophysical and structural consequences introduced by these mutations, there is little information addressing the relationship between the evolutionary and structural features that contribute to the amyloid behavior of apoA‐I. We combined evolutionary studies, in silico mutagenesis and molecular dynamics (MD) simulations to provide a comprehensive analysis of the conservation and pathogenic role of the aggregation‐prone regions (APRs) present in apoA‐I. Sequence analysis demonstrated that among the four amyloidogenic regions described for human apoA‐I, only two (APR1 and APR4) are evolutionary conserved across different species of Sarcopterygii. Moreover, stability analysis carried out with the FoldX engine showed that APR1 contributes to the marginal stability of apoA‐I. Structural properties of full‐length apoA‐I models suggest that aggregation is avoided by placing APRs into highly packed and rigid portions of its native fold. Compared to silent variants extracted from the gnomAD database, the thermodynamic and pathogenic impact of amyloid mutations showed evidence of a higher destabilizing effect. MD simulations of the amyloid variant G26R evidenced the partial unfolding of the alpha‐helix bundle with the concomitant exposure of APR1 to the solvent, suggesting an insight into the early steps involved in its aggregation. Our findings highlight APR1 as a relevant component for apoA‐I structural integrity and emphasize a destabilizing effect of amyloid variants that leads to the exposure of this region."}],"title":"Evolutionary and structural constraints influencing apolipoprotein A‐I amyloid behavior","citation":{"ista":"Gisonno RA, Masson T, Ramella NA, Barrera EE, Romanowski V, Tricerri MA. 2022. Evolutionary and structural constraints influencing apolipoprotein A‐I amyloid behavior. Proteins: Structure, Function, and Bioinformatics. 90(1), 258–269.","mla":"Gisonno, Romina A., et al. “Evolutionary and Structural Constraints Influencing Apolipoprotein A‐I Amyloid Behavior.” <i>Proteins: Structure, Function, and Bioinformatics</i>, vol. 90, no. 1, Wiley, 2022, pp. 258–69, doi:<a href=\"https://doi.org/10.1002/prot.26217\">10.1002/prot.26217</a>.","ama":"Gisonno RA, Masson T, Ramella NA, Barrera EE, Romanowski V, Tricerri MA. Evolutionary and structural constraints influencing apolipoprotein A‐I amyloid behavior. <i>Proteins: Structure, Function, and Bioinformatics</i>. 2022;90(1):258-269. doi:<a href=\"https://doi.org/10.1002/prot.26217\">10.1002/prot.26217</a>","apa":"Gisonno, R. A., Masson, T., Ramella, N. A., Barrera, E. E., Romanowski, V., &#38; Tricerri, M. A. (2022). Evolutionary and structural constraints influencing apolipoprotein A‐I amyloid behavior. <i>Proteins: Structure, Function, and Bioinformatics</i>. Wiley. <a href=\"https://doi.org/10.1002/prot.26217\">https://doi.org/10.1002/prot.26217</a>","chicago":"Gisonno, Romina A., Tomas Masson, Nahuel A. Ramella, Exequiel E. Barrera, Víctor Romanowski, and M. Alejandra Tricerri. “Evolutionary and Structural Constraints Influencing Apolipoprotein A‐I Amyloid Behavior.” <i>Proteins: Structure, Function, and Bioinformatics</i>. Wiley, 2022. <a href=\"https://doi.org/10.1002/prot.26217\">https://doi.org/10.1002/prot.26217</a>.","ieee":"R. A. Gisonno, T. Masson, N. A. Ramella, E. E. Barrera, V. Romanowski, and M. A. Tricerri, “Evolutionary and structural constraints influencing apolipoprotein A‐I amyloid behavior,” <i>Proteins: Structure, Function, and Bioinformatics</i>, vol. 90, no. 1. Wiley, pp. 258–269, 2022.","short":"R.A. Gisonno, T. Masson, N.A. Ramella, E.E. Barrera, V. Romanowski, M.A. Tricerri, Proteins: Structure, Function, and Bioinformatics 90 (2022) 258–269."},"publication_status":"published","year":"2022","volume":90,"doi":"10.1002/prot.26217"},{"title":"Cell scientist to watch – Martin Loose","abstract":[{"text":"Martin Loose studied chemistry at the University of Heidelberg, Germany. He then joined Petra Schwille's group at the Max Planck Institute of Molecular Cell Biology and Genetics in Dresden, where he obtained his PhD degree in 2010 for work on self-organization and pattern formation in the bacterial Min protein system. He then moved to Tim Mitchison's lab at Harvard Medical School, Boston, USA for his postdoc, funded by Human Frontier Science Program (HSFP) and European Molecular Biology Organization (EMBO) long-term fellowships; there, he discovered that the bacterial cell division proteins FtsA and FtsZ self-organize into dynamic cytoskeletal patterns. Martin established his independent research group at the Institute of Science and Technology (IST) Austria in 2015, supported by an European Research Council (ERC) starting grant and HFSP Young Investigator Grant. His lab studies the self-organization of bacterial cell division and small GTPase networks.","lang":"eng"}],"status":"public","issue":"2","publisher":"The Company of Biologists","quality_controlled":"1","doi":"10.1242/jcs.259715","year":"2022","volume":135,"citation":{"ista":"Loose M. 2022. Cell scientist to watch – Martin Loose, The Company of Biologists,p.","ama":"Loose M. <i>Cell Scientist to Watch – Martin Loose</i>. Vol 135. The Company of Biologists; 2022. doi:<a href=\"https://doi.org/10.1242/jcs.259715\">10.1242/jcs.259715</a>","mla":"Loose, Martin. “Cell Scientist to Watch – Martin Loose.” <i>Journal of Cell Science</i>, vol. 135, no. 2, jcs259715, The Company of Biologists, 2022, doi:<a href=\"https://doi.org/10.1242/jcs.259715\">10.1242/jcs.259715</a>.","chicago":"Loose, Martin. <i>Cell Scientist to Watch – Martin Loose</i>. <i>Journal of Cell Science</i>. Vol. 135. The Company of Biologists, 2022. <a href=\"https://doi.org/10.1242/jcs.259715\">https://doi.org/10.1242/jcs.259715</a>.","apa":"Loose, M. (2022). <i>Cell scientist to watch – Martin Loose</i>. <i>Journal of Cell Science</i> (Vol. 135). The Company of Biologists. <a href=\"https://doi.org/10.1242/jcs.259715\">https://doi.org/10.1242/jcs.259715</a>","short":"M. Loose, Cell Scientist to Watch – Martin Loose, The Company of Biologists, 2022.","ieee":"M. Loose, <i>Cell scientist to watch – Martin Loose</i>, vol. 135, no. 2. The Company of Biologists, 2022."},"publication_status":"published","date_updated":"2026-06-18T17:51:26Z","isi":1,"oa":1,"intvolume":"       135","oa_version":"Published Version","publication":"Journal of Cell Science","month":"01","_id":"17057","department":[{"_id":"MaLo"}],"date_created":"2024-05-28T13:28:30Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","type":"other_academic_publication","day":"19","author":[{"orcid":"0000-0001-7309-9724","last_name":"Loose","full_name":"Loose, Martin","id":"462D4284-F248-11E8-B48F-1D18A9856A87","first_name":"Martin"}],"main_file_link":[{"url":"https://doi.org/10.1242/jcs.259715","open_access":"1"}],"publication_identifier":{"eissn":["1477-9137"],"issn":["0021-9533"]},"article_number":"jcs259715","language":[{"iso":"eng"}],"date_published":"2022-01-19T00:00:00Z","external_id":{"isi":["000762665200015"]},"ddc":["570"],"fulldoi":"https://doi.org/10.1242/jcs.259715"},{"type":"conference","article_processing_charge":"Yes","day":"20","scopus_import":"1","author":[{"full_name":"Frantar, Elias","first_name":"Elias","id":"09a8f98d-ec99-11ea-ae11-c063a7b7fe5f","last_name":"Frantar"},{"full_name":"Alistarh, Dan-Adrian","first_name":"Dan-Adrian","id":"4A899BFC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3650-940X","last_name":"Alistarh"}],"corr_author":"1","page":"6726-6743","language":[{"iso":"eng"}],"external_id":{"isi":["000922378801029"]},"alternative_title":["PMLR"],"date_published":"2022-07-20T00:00:00Z","has_accepted_license":"1","ddc":["000"],"acknowledgement":"We gratefully acknowledge funding from the European Research Council (ERC) under the European Union’s Horizon 2020 programme (grant agreement No 805223 ScaleML),\r\nas well as computational support from AWS EC2. We thank Eldar Kurtic for code and hyper-parameters for BERT pruning, and the Neural Magic Team, notably Michael Goin and\r\nMark Kurtz, for support with their software.","title":"SPDY: Accurate pruning with speedup guarantees","abstract":[{"text":"The recent focus on the efficiency of deep neural networks (DNNs) has led to significant work on model compression approaches, of which weight pruning is one of the most popular. At the same time, there is rapidly-growing computational support for efficiently executing the unstructured-sparse models obtained via pruning. Yet, most existing pruning methods minimize just the number of remaining weights, i.e. the size of the model, rather than optimizing for inference time. We address this gap by introducing SPDY, a new compression method which automatically determines layer-wise sparsity targets achieving a desired inference speedup on a given system, while minimizing accuracy loss. SPDY is the composition of two new techniques. The first is an efficient and general dynamic programming algorithm for solving constrained layer-wise compression problems, given a set of layer-wise error scores. The second technique is a local search procedure for automatically determining such scores in an accurate and robust manner. Experiments across popular vision and language models show that SPDY guarantees speedups while recovering higher accuracy relative to existing strategies, both for one-shot and gradual pruning scenarios, and is compatible with most existing pruning approaches. We also extend our approach to the recently-proposed task of pruning with very little data, where we achieve the best known accuracy recovery when pruning to the GPU-supported 2:4 sparsity pattern.","lang":"eng"}],"quality_controlled":"1","publisher":"ML Research Press","project":[{"call_identifier":"H2020","_id":"268A44D6-B435-11E9-9278-68D0E5697425","grant_number":"805223","name":"Elastic Coordination for Scalable Machine Learning"}],"status":"public","publication_status":"published","citation":{"ieee":"E. Frantar and D.-A. Alistarh, “SPDY: Accurate pruning with speedup guarantees,” in <i>39th International Conference on Machine Learning</i>, Baltimore, MD, United States, 2022, vol. 162, pp. 6726–6743.","short":"E. Frantar, D.-A. Alistarh, in:, 39th International Conference on Machine Learning, ML Research Press, 2022, pp. 6726–6743.","apa":"Frantar, E., &#38; Alistarh, D.-A. (2022). SPDY: Accurate pruning with speedup guarantees. In <i>39th International Conference on Machine Learning</i> (Vol. 162, pp. 6726–6743). Baltimore, MD, United States: ML Research Press.","chicago":"Frantar, Elias, and Dan-Adrian Alistarh. “SPDY: Accurate Pruning with Speedup Guarantees.” In <i>39th International Conference on Machine Learning</i>, 162:6726–43. ML Research Press, 2022.","mla":"Frantar, Elias, and Dan-Adrian Alistarh. “SPDY: Accurate Pruning with Speedup Guarantees.” <i>39th International Conference on Machine Learning</i>, vol. 162, ML Research Press, 2022, pp. 6726–43.","ama":"Frantar E, Alistarh D-A. SPDY: Accurate pruning with speedup guarantees. In: <i>39th International Conference on Machine Learning</i>. Vol 162. ML Research Press; 2022:6726-6743.","ista":"Frantar E, Alistarh D-A. 2022. SPDY: Accurate pruning with speedup guarantees. 39th International Conference on Machine Learning. ICML: International Conference on Machine Learning, PMLR, vol. 162, 6726–6743."},"tmp":{"image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"volume":162,"year":"2022","oa":1,"isi":1,"file":[{"creator":"dernst","file_name":"2022_PMLR_Frantar.pdf","date_updated":"2024-08-19T06:54:41Z","file_id":"17440","success":1,"content_type":"application/pdf","date_created":"2024-08-19T06:54:41Z","access_level":"open_access","relation":"main_file","file_size":615916,"checksum":"5179a1e4dfc0fbfab6674907299e414a"}],"date_updated":"2025-04-14T07:49:14Z","oa_version":"Published Version","publication":"39th International Conference on Machine Learning","intvolume":"       162","file_date_updated":"2024-08-19T06:54:41Z","conference":{"start_date":"2022-07-17","location":"Baltimore, MD, United States","end_date":"2022-07-23","name":"ICML: International Conference on Machine Learning"},"ec_funded":1,"_id":"17059","month":"07","date_created":"2024-05-28T13:45:20Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","department":[{"_id":"DaAl"}]},{"page":"217-231","author":[{"last_name":"Tiwari","full_name":"Tiwari, Samarth","first_name":"Samarth"},{"full_name":"Yeo, Michelle X","first_name":"Michelle X","id":"2D82B818-F248-11E8-B48F-1D18A9856A87","orcid":"0009-0001-3676-4809","last_name":"Yeo"},{"full_name":"Avarikioti, Zeta","first_name":"Zeta","last_name":"Avarikioti"},{"last_name":"Salem","first_name":"Iosif","full_name":"Salem, Iosif"},{"last_name":"Pietrzak","orcid":"0000-0002-9139-1654","id":"3E04A7AA-F248-11E8-B48F-1D18A9856A87","first_name":"Krzysztof Z","full_name":"Pietrzak, Krzysztof Z"},{"last_name":"Schmid","first_name":"Stefan","full_name":"Schmid, Stefan"}],"scopus_import":"1","publication_identifier":{"isbn":["9781450398619"]},"day":"19","article_processing_charge":"Yes (in subscription journal)","type":"conference","ddc":["000"],"fulldoi":"https://doi.org/10.1145/3558535.3559775","has_accepted_license":"1","arxiv":1,"date_published":"2022-09-19T00:00:00Z","external_id":{"arxiv":["2205.11597"],"isi":["001041852800015"]},"language":[{"iso":"eng"}],"tmp":{"image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"year":"2022","publication_status":"published","citation":{"ista":"Tiwari S, Yeo MX, Avarikioti Z, Salem I, Pietrzak KZ, Schmid S. 2022. Wiser: Increasing throughput in payment channel networks with transaction aggregation. Proceedings of the 4th ACM Conference on Advances in Financial Technologies. AFT: Conference on Advances in Financial Technologies, 217–231.","ama":"Tiwari S, Yeo MX, Avarikioti Z, Salem I, Pietrzak KZ, Schmid S. Wiser: Increasing throughput in payment channel networks with transaction aggregation. In: <i>Proceedings of the 4th ACM Conference on Advances in Financial Technologies</i>. Association for Computing Machinery; 2022:217-231. doi:<a href=\"https://doi.org/10.1145/3558535.3559775\">10.1145/3558535.3559775</a>","mla":"Tiwari, Samarth, et al. “Wiser: Increasing Throughput in Payment Channel Networks with Transaction Aggregation.” <i>Proceedings of the 4th ACM Conference on Advances in Financial Technologies</i>, Association for Computing Machinery, 2022, pp. 217–31, doi:<a href=\"https://doi.org/10.1145/3558535.3559775\">10.1145/3558535.3559775</a>.","chicago":"Tiwari, Samarth, Michelle X Yeo, Zeta Avarikioti, Iosif Salem, Krzysztof Z Pietrzak, and Stefan Schmid. “Wiser: Increasing Throughput in Payment Channel Networks with Transaction Aggregation.” In <i>Proceedings of the 4th ACM Conference on Advances in Financial Technologies</i>, 217–31. Association for Computing Machinery, 2022. <a href=\"https://doi.org/10.1145/3558535.3559775\">https://doi.org/10.1145/3558535.3559775</a>.","apa":"Tiwari, S., Yeo, M. X., Avarikioti, Z., Salem, I., Pietrzak, K. Z., &#38; Schmid, S. (2022). Wiser: Increasing throughput in payment channel networks with transaction aggregation. In <i>Proceedings of the 4th ACM Conference on Advances in Financial Technologies</i> (pp. 217–231). Cambridge, MA, United States: Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3558535.3559775\">https://doi.org/10.1145/3558535.3559775</a>","short":"S. Tiwari, M.X. Yeo, Z. Avarikioti, I. Salem, K.Z. Pietrzak, S. Schmid, in:, Proceedings of the 4th ACM Conference on Advances in Financial Technologies, Association for Computing Machinery, 2022, pp. 217–231.","ieee":"S. Tiwari, M. X. Yeo, Z. Avarikioti, I. Salem, K. Z. Pietrzak, and S. Schmid, “Wiser: Increasing throughput in payment channel networks with transaction aggregation,” in <i>Proceedings of the 4th ACM Conference on Advances in Financial Technologies</i>, Cambridge, MA, United States, 2022, pp. 217–231."},"doi":"10.1145/3558535.3559775","status":"public","publisher":"Association for Computing Machinery","quality_controlled":"1","abstract":[{"text":"Payment channel networks (PCNs) are one of the most prominent solutions to the limited transaction throughput of blockchains. Nevertheless, PCNs suffer themselves from a throughput limitation due to the capital constraints of their channels. A similar dependence on high capital is also found in inter-bank payment settlements, where the so-called netting technique is used to mitigate liquidity demands.\r\nIn this work, we alleviate this limitation by introducing the notion of transaction aggregation: instead of executing transactions sequentially through a PCN, we enable senders to aggregate multiple transactions and execute them simultaneously to benefit from several amounts that may \"cancel out\". Two direct advantages of our proposal is the decrease in intermediary fees paid by senders as well as the obfuscation of the transaction data from the intermediaries.\r\nWe formulate the transaction aggregation as a computational problem, a generalization of the Bank Clearing Problem. We present a generic framework for the transaction aggregation execution, and thereafter we propose Wiser as an implementation of this framework in a specific hub-based setting. To overcome the NP-hardness of the transaction aggregation problem, in Wiser we propose a fixed-parameter linear algorithm for a special case of transaction aggregation as well as the Bank Clearing Problem. Wiser can also be seen as a modern variant of the Hawala money transfer system, as well as a decentralized implementation of the overseas remittance service of Wise.","lang":"eng"}],"title":"Wiser: Increasing throughput in payment channel networks with transaction aggregation","acknowledgement":"This work was supported partially by ERC Starting Grant QIP–805241, by the Vienna business agency (Wirtschaftsagentur) through the Vienna Cybersecurity and Privacy Research Center\r\n(ViSP) and by the Austrian Science Fund (FWF) project I 4800-N (ADVISE).\r\nThe first author would like to thank Daniel Dadush for suggesting the use of discrepancy techniques to solve the transaction aggregation problem.","department":[{"_id":"KrPi"}],"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","date_created":"2024-05-28T13:58:35Z","month":"09","_id":"17060","conference":{"start_date":"2022-09-19","end_date":"2022-09-21","name":"AFT: Conference on Advances in Financial Technologies","location":"Cambridge, MA, United States"},"file_date_updated":"2024-08-19T06:45:21Z","oa_version":"Published Version","publication":"Proceedings of the 4th ACM Conference on Advances in Financial Technologies","file":[{"success":1,"file_id":"17439","date_updated":"2024-08-19T06:45:21Z","file_name":"2022_AFT_Tiwari.pdf","creator":"dernst","relation":"main_file","file_size":574728,"checksum":"54a7d405f8e57dba24728599ca63818c","date_created":"2024-08-19T06:45:21Z","content_type":"application/pdf","access_level":"open_access"}],"date_updated":"2025-09-10T09:57:48Z","isi":1,"oa":1},{"arxiv":1,"date_published":"2022-09-01T00:00:00Z","pmid":1,"external_id":{"pmid":["36714856"],"arxiv":["2105.06199"]},"language":[{"iso":"eng"}],"fulldoi":"https://doi.org/10.1093/pnasnexus/pgac141","ddc":["000"],"has_accepted_license":"1","day":"01","article_processing_charge":"Yes","type":"journal_article","article_number":"pgac141","author":[{"last_name":"McAvoy","first_name":"Alex","full_name":"McAvoy, Alex"},{"full_name":"Kates-Harbeck, Julian","first_name":"Julian","last_name":"Kates-Harbeck"},{"last_name":"Chatterjee","orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu","first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Hilbe","orcid":"0000-0001-5116-955X","full_name":"Hilbe, Christian","first_name":"Christian","id":"2FDF8F3C-F248-11E8-B48F-1D18A9856A87"}],"publication_identifier":{"issn":["2752-6542"]},"scopus_import":"1","intvolume":"         1","file_date_updated":"2024-08-06T07:33:30Z","publication":"PNAS Nexus","oa_version":"Published Version","oa":1,"date_updated":"2025-06-11T13:54:20Z","file":[{"date_updated":"2024-08-06T07:33:30Z","file_id":"17400","success":1,"creator":"dernst","file_name":"2022_PNASNexus_McAvoy.pdf","relation":"main_file","checksum":"79a8e3e4be7e8a2b407b4efddd65f3f3","file_size":2410962,"content_type":"application/pdf","date_created":"2024-08-06T07:33:30Z","access_level":"open_access"}],"related_material":{"link":[{"relation":"software","url":"https://github.com/alexmcavoy/fmtl/"}]},"article_type":"original","department":[{"_id":"KrCh"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2024-05-28T14:23:12Z","month":"09","_id":"17061","ec_funded":1,"project":[{"grant_number":"863818","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","call_identifier":"H2020","name":"Formal Methods for Stochastic Models: Algorithms and Applications"}],"publisher":"Oxford University Press","issue":"4","status":"public","quality_controlled":"1","title":"Evolutionary instability of selfish learning in repeated games","abstract":[{"lang":"eng","text":"Across many domains of interaction, both natural and artificial, individuals use past experience to shape future behaviors. The results of such learning processes depend on what individuals wish to maximize. A natural objective is one’s own success. However, when two such “selfish” learners interact with each other, the outcome can be detrimental to both, especially when there are conflicts of interest. Here, we explore how a learner can align incentives with a selfish opponent. Moreover, we consider the dynamics that arise when learning rules themselves are subject to evolutionary pressure. By combining extensive simulations and analytical techniques, we demonstrate that selfish learning is unstable in most classical two-player repeated games. If evolution operates on the level of long-run payoffs, selection instead favors learning rules that incorporate social (other-regarding) preferences. To further corroborate these results, we analyze data from a repeated prisoner’s dilemma experiment. We find that selfish learning is insufficient to explain human behavior when there is a trade-off between payoff maximization and fairness."}],"acknowledgement":"The authors are grateful to Jörg Oechssler for many helpful comments. A.M. was supported by a Simons Postdoctoral Fellowship (Math+X) at the University of Pennsylvania; K.C. was supported by the European Research Council Consolidator Grant 863818 (ForM-SMArt); and C.H. was supported by the European Research Council Starting Grant 850529 (E-DIRECT).","year":"2022","tmp":{"image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"volume":1,"publication_status":"published","citation":{"apa":"McAvoy, A., Kates-Harbeck, J., Chatterjee, K., &#38; Hilbe, C. (2022). Evolutionary instability of selfish learning in repeated games. <i>PNAS Nexus</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/pnasnexus/pgac141\">https://doi.org/10.1093/pnasnexus/pgac141</a>","chicago":"McAvoy, Alex, Julian Kates-Harbeck, Krishnendu Chatterjee, and Christian Hilbe. “Evolutionary Instability of Selfish Learning in Repeated Games.” <i>PNAS Nexus</i>. Oxford University Press, 2022. <a href=\"https://doi.org/10.1093/pnasnexus/pgac141\">https://doi.org/10.1093/pnasnexus/pgac141</a>.","ieee":"A. McAvoy, J. Kates-Harbeck, K. Chatterjee, and C. Hilbe, “Evolutionary instability of selfish learning in repeated games,” <i>PNAS Nexus</i>, vol. 1, no. 4. Oxford University Press, 2022.","short":"A. McAvoy, J. Kates-Harbeck, K. Chatterjee, C. Hilbe, PNAS Nexus 1 (2022).","ista":"McAvoy A, Kates-Harbeck J, Chatterjee K, Hilbe C. 2022. Evolutionary instability of selfish learning in repeated games. PNAS Nexus. 1(4), pgac141.","mla":"McAvoy, Alex, et al. “Evolutionary Instability of Selfish Learning in Repeated Games.” <i>PNAS Nexus</i>, vol. 1, no. 4, pgac141, Oxford University Press, 2022, doi:<a href=\"https://doi.org/10.1093/pnasnexus/pgac141\">10.1093/pnasnexus/pgac141</a>.","ama":"McAvoy A, Kates-Harbeck J, Chatterjee K, Hilbe C. Evolutionary instability of selfish learning in repeated games. <i>PNAS Nexus</i>. 2022;1(4). doi:<a href=\"https://doi.org/10.1093/pnasnexus/pgac141\">10.1093/pnasnexus/pgac141</a>"},"doi":"10.1093/pnasnexus/pgac141"},{"article_processing_charge":"No","type":"journal_article","day":"09","author":[{"first_name":"Haisen","id":"fb7f793a-80d1-11eb-8869-d56e5b2a8ff4","full_name":"Zhao, Haisen","last_name":"Zhao","orcid":"0000-0002-6389-1045"},{"last_name":"Willsey","first_name":"Max","full_name":"Willsey, Max"},{"first_name":"Amy","full_name":"Zhu, Amy","last_name":"Zhu"},{"last_name":"Nandi","first_name":"Chandrakana","full_name":"Nandi, Chandrakana"},{"first_name":"Zachary","full_name":"Tatlock, Zachary","last_name":"Tatlock"},{"last_name":"Solomon","first_name":"Justin","full_name":"Solomon, Justin"},{"first_name":"Adriana","full_name":"Schulz, Adriana","last_name":"Schulz"}],"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2107.12265","open_access":"1"}],"scopus_import":"1","publication_identifier":{"eissn":["1557-7368"],"issn":["0730-0301"]},"article_number":"32","language":[{"iso":"eng"}],"arxiv":1,"external_id":{"arxiv":["2107.12265"]},"date_published":"2022-03-09T00:00:00Z","fulldoi":"https://doi.org/10.1145/3508499","abstract":[{"lang":"eng","text":"Past work on optimizing fabrication plans given a carpentry design can provide Pareto-optimal plans trading off between material waste, fabrication time, precision, and other considerations. However, when developing fabrication plans, experts rarely restrict to a single design, instead considering families of design variations, sometimes adjusting designs to simplify fabrication. Jointly exploring the design and fabrication plan spaces for each design is intractable using current techniques. We present a new approach to jointly optimize design and fabrication plans for carpentered objects. To make this bi-level optimization tractable, we adapt recent work from program synthesis based on equality graphs (e-graphs), which encode sets of equivalent programs. Our insight is that subproblems within our bi-level problem share significant substructures. By representing both designs and fabrication plans in a new bag of parts (BOP) e-graph, we amortize the cost of optimizing design components shared among multiple candidates. Even using BOP e-graphs, the optimization space grows quickly in practice. Hence, we also show how a feedback-guided search strategy dubbed Iterative Contraction and Expansion on E-graphs (ICEE) can keep the size of the e-graph manageable and direct the search towards promising candidates. We illustrate the advantages of our pipeline through examples from the carpentry domain."}],"title":"Co-optimization of design and fabrication plans for carpentry","acknowledgement":"The authors would like to thank anonymous reviewers for their helpful feedback; Haomiao Wu for her contribution to the algorithm development in the early stage of the project; Elias Baldwin, David Tsay, Alexander Lefort, and Qiyang Tan for helping the experiments.","status":"public","issue":"3","publisher":"Association for Computing Machinery","quality_controlled":"1","doi":"10.1145/3508499","year":"2022","volume":41,"publication_status":"published","citation":{"short":"H. Zhao, M. Willsey, A. Zhu, C. Nandi, Z. Tatlock, J. Solomon, A. Schulz, ACM Transactions on Graphics 41 (2022).","ieee":"H. Zhao <i>et al.</i>, “Co-optimization of design and fabrication plans for carpentry,” <i>ACM Transactions on Graphics</i>, vol. 41, no. 3. Association for Computing Machinery, 2022.","chicago":"Zhao, Haisen, Max Willsey, Amy Zhu, Chandrakana Nandi, Zachary Tatlock, Justin Solomon, and Adriana Schulz. “Co-Optimization of Design and Fabrication Plans for Carpentry.” <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2022. <a href=\"https://doi.org/10.1145/3508499\">https://doi.org/10.1145/3508499</a>.","apa":"Zhao, H., Willsey, M., Zhu, A., Nandi, C., Tatlock, Z., Solomon, J., &#38; Schulz, A. (2022). Co-optimization of design and fabrication plans for carpentry. <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3508499\">https://doi.org/10.1145/3508499</a>","ama":"Zhao H, Willsey M, Zhu A, et al. Co-optimization of design and fabrication plans for carpentry. <i>ACM Transactions on Graphics</i>. 2022;41(3). doi:<a href=\"https://doi.org/10.1145/3508499\">10.1145/3508499</a>","mla":"Zhao, Haisen, et al. “Co-Optimization of Design and Fabrication Plans for Carpentry.” <i>ACM Transactions on Graphics</i>, vol. 41, no. 3, 32, Association for Computing Machinery, 2022, doi:<a href=\"https://doi.org/10.1145/3508499\">10.1145/3508499</a>.","ista":"Zhao H, Willsey M, Zhu A, Nandi C, Tatlock Z, Solomon J, Schulz A. 2022. Co-optimization of design and fabrication plans for carpentry. ACM Transactions on Graphics. 41(3), 32."},"date_updated":"2024-08-06T07:03:14Z","oa":1,"intvolume":"        41","oa_version":"Preprint","publication":"ACM Transactions on Graphics","month":"03","_id":"17065","department":[{"_id":"BeBi"}],"article_type":"original","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2024-05-29T06:09:23Z"},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2024-05-29T06:09:34Z","department":[{"_id":"CaHe"}],"article_type":"original","_id":"17066","month":"10","publication":"PLOS Biology","oa_version":"Published Version","file_date_updated":"2024-08-06T07:07:52Z","intvolume":"        20","file":[{"date_updated":"2024-08-06T07:07:52Z","file_id":"17399","success":1,"creator":"dernst","file_name":"2022_PlosBio_Sethi.pdf","checksum":"a7b46460b7819c196028481cc18a7c85","file_size":2515388,"relation":"main_file","access_level":"open_access","content_type":"application/pdf","date_created":"2024-08-06T07:07:52Z"}],"date_updated":"2024-08-06T07:08:54Z","oa":1,"publication_status":"published","citation":{"chicago":"Sethi, Aditya, Hai Wei, Nikhil Mishra, Ioannis Segos, Eric J. Lambie, Esther Zanin, and Barbara Conradt. “A Caspase–RhoGEF Axis Contributes to the Cell Size Threshold for Apoptotic Death in Developing Caenorhabditis Elegans.” <i>PLOS Biology</i>. Public Library of Science, 2022. <a href=\"https://doi.org/10.1371/journal.pbio.3001786\">https://doi.org/10.1371/journal.pbio.3001786</a>.","apa":"Sethi, A., Wei, H., Mishra, N., Segos, I., Lambie, E. J., Zanin, E., &#38; Conradt, B. (2022). A caspase–RhoGEF axis contributes to the cell size threshold for apoptotic death in developing Caenorhabditis elegans. <i>PLOS Biology</i>. Public Library of Science. <a href=\"https://doi.org/10.1371/journal.pbio.3001786\">https://doi.org/10.1371/journal.pbio.3001786</a>","short":"A. Sethi, H. Wei, N. Mishra, I. Segos, E.J. Lambie, E. Zanin, B. Conradt, PLOS Biology 20 (2022).","ieee":"A. Sethi <i>et al.</i>, “A caspase–RhoGEF axis contributes to the cell size threshold for apoptotic death in developing Caenorhabditis elegans,” <i>PLOS Biology</i>, vol. 20, no. 10. Public Library of Science, 2022.","ista":"Sethi A, Wei H, Mishra N, Segos I, Lambie EJ, Zanin E, Conradt B. 2022. A caspase–RhoGEF axis contributes to the cell size threshold for apoptotic death in developing Caenorhabditis elegans. PLOS Biology. 20(10), e3001786.","ama":"Sethi A, Wei H, Mishra N, et al. A caspase–RhoGEF axis contributes to the cell size threshold for apoptotic death in developing Caenorhabditis elegans. <i>PLOS Biology</i>. 2022;20(10). doi:<a href=\"https://doi.org/10.1371/journal.pbio.3001786\">10.1371/journal.pbio.3001786</a>","mla":"Sethi, Aditya, et al. “A Caspase–RhoGEF Axis Contributes to the Cell Size Threshold for Apoptotic Death in Developing Caenorhabditis Elegans.” <i>PLOS Biology</i>, vol. 20, no. 10, e3001786, Public Library of Science, 2022, doi:<a href=\"https://doi.org/10.1371/journal.pbio.3001786\">10.1371/journal.pbio.3001786</a>."},"tmp":{"image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"volume":20,"year":"2022","doi":"10.1371/journal.pbio.3001786","quality_controlled":"1","issue":"10","status":"public","publisher":"Public Library of Science","acknowledgement":"We thank members of the Conradt, Lambie, and Hajnal labs for discussions and comments on the manuscript. We thank M. Bauer, L. Jocham, N. Lebedeva, and L. McGuinness for excellent technical support; A. Hajnal and T. Kohlbrenner (University of Zurich, Switzerland) for allele zh135; and H.R. Horvitz (Massachusetts of Technology, USA) for plasmid pET-CED-3.\r\nSome strains were provided by the Caenorhabditis Genetics Center (CGC), which is funded by NIH Office of Research Infrastructure Programs (https://orip.nih.gov/) (P40 OD010440). This work was supported by UCL (Capital Equipment Fund, CEF2), a predoctoral fellowship from the China Scholarship Council (https://www.csc.edu.cn/) to HW, a predoctoral fellowship from the Studienstiftung des Deutschen Volkes (https://www.studienstiftung.de/) to NM, a Wolfson Fellowship from the Royal Society (https://royalsociety.org/) to BC (RSWF\\R1\\180008), the Deutsche Forschungsgemeinschaft (https://www.dfg.de/en/index.jsp) (ZA619/3-1 and ZA619/3-2 to EZ; C0204/10-1 and EXC114 to BC), and the Biotechnology and Biological Sciences Research Council (https://bbsrc.ukri.org/) (BB/V007572/1 to BC). ","title":"A caspase–RhoGEF axis contributes to the cell size threshold for apoptotic death in developing Caenorhabditis elegans","abstract":[{"lang":"eng","text":"A cell’s size affects the likelihood that it will die. But how is cell size controlled in this context and how does cell size impact commitment to the cell death fate? We present evidence that the caspase CED-3 interacts with the RhoGEF ECT-2 in Caenorhabditis elegans neuroblasts that generate “unwanted” cells. We propose that this interaction promotes polar actomyosin contractility, which leads to unequal neuroblast division and the generation of a daughter cell that is below the critical “lethal” size threshold. Furthermore, we find that hyperactivation of ECT-2 RhoGEF reduces the sizes of unwanted cells. Importantly, this suppresses the “cell death abnormal” phenotype caused by the partial loss of ced-3 caspase and therefore increases the likelihood that unwanted cells die. A putative null mutation of ced-3 caspase, however, is not suppressed, which indicates that cell size affects CED-3 caspase activation and/or activity. Therefore, we have uncovered novel sequential and reciprocal interactions between the apoptosis pathway and cell size that impact a cell’s commitment to the cell death fate."}],"has_accepted_license":"1","ddc":["570"],"fulldoi":"https://doi.org/10.1371/journal.pbio.3001786","external_id":{"pmid":["36201522"]},"pmid":1,"date_published":"2022-10-06T00:00:00Z","language":[{"iso":"eng"}],"article_number":"e3001786","publication_identifier":{"issn":["1545-7885"]},"scopus_import":"1","author":[{"first_name":"Aditya","full_name":"Sethi, Aditya","last_name":"Sethi"},{"first_name":"Hai","full_name":"Wei, Hai","last_name":"Wei"},{"full_name":"Mishra, Nikhil","first_name":"Nikhil","id":"C4D70E82-1081-11EA-B3ED-9A4C3DDC885E","orcid":"0000-0002-6425-5788","last_name":"Mishra"},{"last_name":"Segos","first_name":"Ioannis","full_name":"Segos, Ioannis"},{"last_name":"Lambie","first_name":"Eric J.","full_name":"Lambie, Eric J."},{"full_name":"Zanin, Esther","first_name":"Esther","last_name":"Zanin"},{"last_name":"Conradt","full_name":"Conradt, Barbara","first_name":"Barbara"}],"day":"06","type":"journal_article","article_processing_charge":"Yes"},{"file":[{"content_type":"application/pdf","date_created":"2024-08-06T06:54:24Z","access_level":"open_access","relation":"main_file","checksum":"b705d3d23d0b424ba29920be7ab64c23","file_size":8890818,"creator":"dernst","file_name":"2022_NeurobioDisease_Stouffer.pdf","file_id":"17398","date_updated":"2024-08-06T06:54:24Z","success":1}],"date_updated":"2024-08-06T06:57:39Z","oa":1,"publication":"Neurobiology of Disease","oa_version":"Published Version","file_date_updated":"2024-08-06T06:54:24Z","intvolume":"       168","_id":"17067","month":"06","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2024-05-29T06:10:05Z","department":[{"_id":"SiHi"}],"article_type":"original","acknowledgement":"We thank Sylvie Dumont for initial aid with laser microdissection and G. Martinez-Lorenzana for experimental help with electron microscopy. We thank the animal experimentation facility and cellular and tissue imaging platforms at the Institut du Fer à Moulin, supported also by the Région Ile de France and the FRC Rotary. The Francis lab was associated with the BioPsy Labex project and the Ecole des Neurosciences de Paris Ile-de-France (ENP) network. Our salaries and lab were supported by Inserm, the Centre national de la recherche scientifique (CNRS) and Sorbonne University. The Francis group obtained the following funding contributing to this project: the European Union (EU- HEALTH-2013, DESIRE, N° 60253), the JTC 2015 Neurodevelopmental Disorders affiliated with the French Agence National de la Recherche (for \r\nNEURON8-Full- 815-006 STEM-MCD, to FF), E-Rare-3, the ERA-Net for Research on Rare Diseases affiliated with the French ANR (ERARE18-049), the European Cooperation on Science and Technology (COST Action CA16118).","abstract":[{"lang":"eng","text":"Human doublecortin (DCX) mutations are associated with severe brain malformations leading to aberrant neuron positioning (heterotopia), intellectual disability and epilepsy. DCX is a microtubule-associated protein which plays a key role during neurodevelopment in neuronal migration and differentiation. Dcx knockout (KO) mice show disorganized hippocampal pyramidal neurons. The CA2/CA3 pyramidal cell layer is present as two abnormal layers and disorganized CA3 KO pyramidal neurons are also more excitable than wild-type (WT) cells. To further identify abnormalities, we characterized Dcx KO hippocampal neurons at subcellular, molecular and ultrastructural levels. Severe defects were observed in mitochondria, affecting number and distribution. Also, the Golgi apparatus was visibly abnormal, increased in volume and abnormally organized. Transcriptome analyses from laser microdissected hippocampal tissue at postnatal day 60 (P60) highlighted organelle abnormalities. Ultrastructural studies of CA3 cells performed in P60 (young adult) and > 9 months (mature) tissue showed that organelle defects are persistent throughout life. Locomotor activity and fear memory of young and mature adults were also abnormal: Dcx KO mice consistently performed less well than WT littermates, with defects becoming more severe with age. Thus, we show that disruption of a neurodevelopmentally-regulated gene can lead to permanent organelle anomalies contributing to abnormal adult behavior."}],"title":"Doublecortin mutation leads to persistent defects in the Golgi apparatus and mitochondria in adult hippocampal pyramidal cells","quality_controlled":"1","license":"https://creativecommons.org/licenses/by-nc-nd/4.0/","status":"public","publisher":"Elsevier","doi":"10.1016/j.nbd.2022.105702","citation":{"chicago":"Stouffer, Melissa A, R. Khalaf-Nazzal, C. Cifuentes-Diaz, G. Albertini, E. Bandet, G. Grannec, V. Lavilla, et al. “Doublecortin Mutation Leads to Persistent Defects in the Golgi Apparatus and Mitochondria in Adult Hippocampal Pyramidal Cells.” <i>Neurobiology of Disease</i>. Elsevier, 2022. <a href=\"https://doi.org/10.1016/j.nbd.2022.105702\">https://doi.org/10.1016/j.nbd.2022.105702</a>.","apa":"Stouffer, M. A., Khalaf-Nazzal, R., Cifuentes-Diaz, C., Albertini, G., Bandet, E., Grannec, G., … Francis, F. (2022). Doublecortin mutation leads to persistent defects in the Golgi apparatus and mitochondria in adult hippocampal pyramidal cells. <i>Neurobiology of Disease</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.nbd.2022.105702\">https://doi.org/10.1016/j.nbd.2022.105702</a>","short":"M.A. Stouffer, R. Khalaf-Nazzal, C. Cifuentes-Diaz, G. Albertini, E. Bandet, G. Grannec, V. Lavilla, J.-F. Deleuze, R. Olaso, M. Nosten-Bertrand, F. Francis, Neurobiology of Disease 168 (2022).","ieee":"M. A. Stouffer <i>et al.</i>, “Doublecortin mutation leads to persistent defects in the Golgi apparatus and mitochondria in adult hippocampal pyramidal cells,” <i>Neurobiology of Disease</i>, vol. 168. Elsevier, 2022.","ista":"Stouffer MA, Khalaf-Nazzal R, Cifuentes-Diaz C, Albertini G, Bandet E, Grannec G, Lavilla V, Deleuze J-F, Olaso R, Nosten-Bertrand M, Francis F. 2022. Doublecortin mutation leads to persistent defects in the Golgi apparatus and mitochondria in adult hippocampal pyramidal cells. Neurobiology of Disease. 168, 105702.","ama":"Stouffer MA, Khalaf-Nazzal R, Cifuentes-Diaz C, et al. Doublecortin mutation leads to persistent defects in the Golgi apparatus and mitochondria in adult hippocampal pyramidal cells. <i>Neurobiology of Disease</i>. 2022;168. doi:<a href=\"https://doi.org/10.1016/j.nbd.2022.105702\">10.1016/j.nbd.2022.105702</a>","mla":"Stouffer, Melissa A., et al. “Doublecortin Mutation Leads to Persistent Defects in the Golgi Apparatus and Mitochondria in Adult Hippocampal Pyramidal Cells.” <i>Neurobiology of Disease</i>, vol. 168, 105702, Elsevier, 2022, doi:<a href=\"https://doi.org/10.1016/j.nbd.2022.105702\">10.1016/j.nbd.2022.105702</a>."},"publication_status":"published","tmp":{"image":"/images/cc_by_nc_nd.png","short":"CC BY-NC-ND (4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode","name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)"},"year":"2022","volume":168,"language":[{"iso":"eng"}],"date_published":"2022-06-15T00:00:00Z","pmid":1,"external_id":{"pmid":["35339680"]},"has_accepted_license":"1","ddc":["570"],"fulldoi":"https://doi.org/10.1016/j.nbd.2022.105702","type":"journal_article","article_processing_charge":"Yes","day":"15","scopus_import":"1","publication_identifier":{"issn":["0969-9961"]},"author":[{"id":"4C9372C4-F248-11E8-B48F-1D18A9856A87","first_name":"Melissa A","full_name":"Stouffer, Melissa A","last_name":"Stouffer"},{"full_name":"Khalaf-Nazzal, R.","first_name":"R.","last_name":"Khalaf-Nazzal"},{"full_name":"Cifuentes-Diaz, C.","first_name":"C.","last_name":"Cifuentes-Diaz"},{"full_name":"Albertini, G.","first_name":"G.","last_name":"Albertini"},{"last_name":"Bandet","first_name":"E.","full_name":"Bandet, E."},{"full_name":"Grannec, G.","first_name":"G.","last_name":"Grannec"},{"last_name":"Lavilla","full_name":"Lavilla, V.","first_name":"V."},{"last_name":"Deleuze","full_name":"Deleuze, J.-F.","first_name":"J.-F."},{"last_name":"Olaso","first_name":"R.","full_name":"Olaso, R."},{"first_name":"M.","full_name":"Nosten-Bertrand, M.","last_name":"Nosten-Bertrand"},{"last_name":"Francis","first_name":"F.","full_name":"Francis, F."}],"article_number":"105702"},{"oa_version":"Published Version","publication":"Plant Communications","intvolume":"         3","file_date_updated":"2024-08-05T10:26:29Z","oa":1,"date_updated":"2024-08-05T10:27:03Z","file":[{"relation":"main_file","file_size":3216686,"checksum":"1eeb6ee65419e4aa34627fea6857f343","date_created":"2024-08-05T10:26:29Z","content_type":"application/pdf","access_level":"open_access","success":1,"file_id":"17393","date_updated":"2024-08-05T10:26:29Z","creator":"dernst","file_name":"2022_PlantComm_Navarrete.pdf"}],"date_created":"2024-05-29T06:10:22Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_type":"original","department":[{"_id":"JiFr"}],"_id":"17068","month":"03","quality_controlled":"1","publisher":"Elsevier","issue":"2","status":"public","acknowledgement":"The research leading to these results received funding from the European Research Council under the European Union Seventh Framework Programme ERC-2013-STG grant agreement \r\n335691; the Austrian Science Fund (FWF) P27818-B22,I 3033-B22; the Austrian Academy of Sciences (OEAW); and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy - EXC 2070-390732324.\r\nWe would like to thank the GMI/IMBA/IMP core facilities for excellent technical support, especially the BioOptics and Molecular Biology Services. We thank the Plant Sciences and Next Generation Sequencing Facilities at the Vienna BioCenter Core Facilities GmbH (VBCF). We are grateful to the Jirí Friml and Jürgen Kleine-Vehn laboratories for providing useful A. thaliana lines. We thank Mathias Madalinski for peptide synthesis and Dr. J. Matthew Watson for proofreading and valuable feedback on the manuscript. The authors declare no competing interests.","title":"TOPLESS promotes plant immunity by repressing auxin signaling and is targeted by the fungal effector Naked1","abstract":[{"text":"In plants, the antagonism between growth and defense is hardwired by hormonal signaling. The perception of pathogen-associated molecular patterns (PAMPs) from invading microorganisms inhibits auxin signaling and plant growth. Conversely, pathogens manipulate auxin signaling to promote disease, but how this hormone inhibits immunity is not fully understood. Ustilago maydis is a maize pathogen that induces auxin signaling in its host. We characterized a U. maydis effector protein, Naked1 (Nkd1), that is translocated into the host nucleus. Through its native ethylene-responsive element binding factor-associated amphiphilic repression (EAR) motif, Nkd1 binds to the transcriptional co-repressors TOPLESS/TOPLESS-related (TPL/TPRs) and prevents the recruitment of a transcriptional repressor involved in hormonal signaling, leading to the de-repression of auxin and jasmonate signaling and thereby promoting susceptibility to (hemi)biotrophic pathogens. A moderate upregulation of auxin signaling inhibits the PAMP-triggered reactive oxygen species (ROS) burst, an early defense response. Thus, our findings establish a clear mechanism for auxin-induced pathogen susceptibility. Engineered Nkd1 variants with increased expression or increased EAR-mediated TPL/TPR binding trigger typical salicylic-acid-mediated defense reactions, leading to pathogen resistance. This implies that moderate binding of Nkd1 to TPL is a result of a balancing evolutionary selection process to enable TPL manipulation while avoiding host recognition.","lang":"eng"}],"citation":{"ama":"Navarrete F, Gallei MC, Kornienko AE, et al. TOPLESS promotes plant immunity by repressing auxin signaling and is targeted by the fungal effector Naked1. <i>Plant Communications</i>. 2022;3(2). doi:<a href=\"https://doi.org/10.1016/j.xplc.2021.100269\">10.1016/j.xplc.2021.100269</a>","mla":"Navarrete, Fernando, et al. “TOPLESS Promotes Plant Immunity by Repressing Auxin Signaling and Is Targeted by the Fungal Effector Naked1.” <i>Plant Communications</i>, vol. 3, no. 2, 100269, Elsevier, 2022, doi:<a href=\"https://doi.org/10.1016/j.xplc.2021.100269\">10.1016/j.xplc.2021.100269</a>.","ista":"Navarrete F, Gallei MC, Kornienko AE, Saado I, Khan M, Chia K-S, Darino MA, Bindics J, Djamei A. 2022. TOPLESS promotes plant immunity by repressing auxin signaling and is targeted by the fungal effector Naked1. Plant Communications. 3(2), 100269.","short":"F. Navarrete, M.C. Gallei, A.E. Kornienko, I. Saado, M. Khan, K.-S. Chia, M.A. Darino, J. Bindics, A. Djamei, Plant Communications 3 (2022).","ieee":"F. Navarrete <i>et al.</i>, “TOPLESS promotes plant immunity by repressing auxin signaling and is targeted by the fungal effector Naked1,” <i>Plant Communications</i>, vol. 3, no. 2. Elsevier, 2022.","chicago":"Navarrete, Fernando, Michelle C Gallei, Aleksandra E. Kornienko, Indira Saado, Mamoona Khan, Khong-Sam Chia, Martin A. Darino, Janos Bindics, and Armin Djamei. “TOPLESS Promotes Plant Immunity by Repressing Auxin Signaling and Is Targeted by the Fungal Effector Naked1.” <i>Plant Communications</i>. Elsevier, 2022. <a href=\"https://doi.org/10.1016/j.xplc.2021.100269\">https://doi.org/10.1016/j.xplc.2021.100269</a>.","apa":"Navarrete, F., Gallei, M. C., Kornienko, A. E., Saado, I., Khan, M., Chia, K.-S., … Djamei, A. (2022). TOPLESS promotes plant immunity by repressing auxin signaling and is targeted by the fungal effector Naked1. <i>Plant Communications</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.xplc.2021.100269\">https://doi.org/10.1016/j.xplc.2021.100269</a>"},"publication_status":"published","volume":3,"tmp":{"image":"/images/cc_by_nc_nd.png","short":"CC BY-NC-ND (4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode","name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)"},"year":"2022","doi":"10.1016/j.xplc.2021.100269","date_published":"2022-03-14T00:00:00Z","pmid":1,"external_id":{"pmid":["35529945"]},"language":[{"iso":"eng"}],"has_accepted_license":"1","fulldoi":"https://doi.org/10.1016/j.xplc.2021.100269","ddc":["580"],"day":"14","type":"journal_article","article_processing_charge":"Yes","article_number":"100269","publication_identifier":{"issn":["2590-3462"]},"scopus_import":"1","author":[{"last_name":"Navarrete","first_name":"Fernando","full_name":"Navarrete, Fernando"},{"orcid":"0000-0003-1286-7368","last_name":"Gallei","full_name":"Gallei, Michelle C","first_name":"Michelle C","id":"35A03822-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Aleksandra E.","full_name":"Kornienko, Aleksandra E.","last_name":"Kornienko"},{"last_name":"Saado","first_name":"Indira","full_name":"Saado, Indira"},{"last_name":"Khan","first_name":"Mamoona","full_name":"Khan, Mamoona"},{"last_name":"Chia","first_name":"Khong-Sam","full_name":"Chia, Khong-Sam"},{"last_name":"Darino","first_name":"Martin A.","full_name":"Darino, Martin A."},{"last_name":"Bindics","first_name":"Janos","full_name":"Bindics, Janos"},{"last_name":"Djamei","full_name":"Djamei, Armin","first_name":"Armin"}]}]