[{"publication_identifier":{"issn":["0277-786X"]},"publication":"Proceedings of the SPIE","status":"public","abstract":[{"text":"eXTP is a science mission designed to study the state of matter under extreme conditions of density, gravity and magnetism. Primary goals are the determination of the equation of state of matter at supra-nuclear density, the measurement of QED effects in highly magnetized star, and the study of accretion in the strong-field regime of gravity. Primary targets include isolated and binary neutron stars, strong magnetic field systems like magnetars, and stellar-mass and supermassive black holes. The mission carries a unique and unprecedented suite of state-of-the-art scientific instruments enabling for the first time ever the simultaneous spectral-timing-polarimetry studies of cosmic sources in the energy range from 0.5-30 keV (and beyond). Key elements of the payload are: the Spectroscopic Focusing Array (SFA) - a set of 11 X-ray optics for a total effective area of ∼0.9 m2 and 0.6 m2 at 2 keV and 6 keV respectively, equipped with Silicon Drift Detectors offering <180 eV spectral resolution; the Large Area Detector (LAD) - a deployable set of 640 Silicon Drift Detectors, for a total effective area of ∼3.4 m2, between 6 and 10 keV, and spectral resolution better than 250 eV; the Polarimetry Focusing Array (PFA) - a set of 2 X-ray telescope, for a total effective area of 250 cm2 at 2 keV, equipped with imaging gas pixel photoelectric polarimeters; the Wide Field Monitor (WFM) - a set of 3 coded mask wide field units, equipped with position-sensitive Silicon Drift Detectors, each covering a 90 degrees x 90 degrees field of view. The eXTP international consortium includes major institutions of the Chinese Academy of Sciences and Universities in China, as well as major institutions in several European countries and the United States. The predecessor of eXTP, the XTP mission concept, has been selected and funded as one of the so-called background missions in the Strategic Priority Space Science Program of the Chinese Academy of Sciences since 2011. The strong European participation has significantly enhanced the scientific capabilities of eXTP. The planned launch date of the mission is earlier than 2025.","lang":"eng"}],"month":"07","article_processing_charge":"No","volume":9905,"quality_controlled":"1","date_created":"2024-03-26T10:42:21Z","oa":1,"article_number":"99051Q ","publisher":"SPIE","_id":"15245","intvolume":"      9905","type":"conference","oa_version":"Preprint","publication_status":"published","author":[{"last_name":"Zhang","first_name":"S. N.","full_name":"Zhang, S. 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SPIE; 2016. doi:<a href=\"https://doi.org/10.1117/12.2232034\">10.1117/12.2232034</a>","ieee":"S. N. Zhang <i>et al.</i>, “eXTP: Enhanced X-ray timing and polarization mission,” in <i>Proceedings of the SPIE</i>, 2016, vol. 9905.","apa":"Zhang, S. N., Feroci, M., Santangelo, A., Dong, Y. W., Feng, H., Lu, F. J., … Zhou, X. L. (2016). eXTP: Enhanced X-ray timing and polarization mission. In <i>Proceedings of the SPIE</i> (Vol. 9905). SPIE. <a href=\"https://doi.org/10.1117/12.2232034\">https://doi.org/10.1117/12.2232034</a>","mla":"Zhang, S. N., et al. “EXTP: Enhanced X-Ray Timing and Polarization Mission.” <i>Proceedings of the SPIE</i>, vol. 9905, 99051Q, SPIE, 2016, doi:<a href=\"https://doi.org/10.1117/12.2232034\">10.1117/12.2232034</a>.","short":"S.N. Zhang, M. Feroci, A. Santangelo, Y.W. Dong, H. Feng, F.J. Lu, K. Nandra, Z.S. Wang, S. Zhang, E. Bozzo, S. Brandt, A. De Rosa, L.J. Gou, M. Hernanz, M. van der Klis, X.D. Li, Y. Liu, P. Orleanski, G. Pareschi, M. Pohl, J. Poutanen, J.L. Qu, S. Schanne, L. Stella, P. Uttley, A. Watts, R.X. Xu, W.F. Yu, J.J.M. in ’t Zand, S. Zane, L. Alvarez, L. Amati, L. Baldini, C. Bambi, S. Basso, S. Bhattacharyya, R. Bellazzini, T. Belloni, P. Bellutti, S. Bianchi, A. Brez, M. Bursa, V. Burwitz, C. Budtz-Jørgensen, I. Caiazzo, R. Campana, X.L. Cao, P. Casella, C.Y. Chen, L. Chen, T. Chen, Y. Chen, Y. Chen, Y.P. Chen, M. Civitani, F. Coti Zelati, W. Cui, W.W. Cui, Z.G. Dai, E. Del Monte, D. de Martino, S. Di Cosimo, S. Diebold, M. Dovciak, I. Donnarumma, V. Doroshenko, P. Esposito, Y. Evangelista, Y. Favre, P. Friedrich, F. Fuschino, J.L. Galvez, Z.L. Gao, M.Y. Ge, O. Gevin, D. Goetz, D.W. Han, J. Heyl, J. Horak, W. Hu, F. Huang, Q.S. Huang, R. Hudec, D. Huppenkothen, G.L. Israel, A. Ingram, V. Karas, D. Karelin, P.A. Jenke, L. Ji, S. Korpela, D. Kunneriath, C. Labanti, G. Li, X. Li, Z.S. Li, E.W. Liang, O. Limousin, L. Lin, Z.X. Ling, H.B. Liu, H.W. Liu, Z. Liu, B. Lu, N. Lund, D. Lai, B. Luo, T. Luo, B. Ma, S. Mahmoodifar, M. Marisaldi, A. Martindale, N. Meidinger, Y.P. Men, M. Michalska, R. Mignani, M. Minuti, S. Motta, F. Muleri, J. Neilsen, M. Orlandini, A.T. Pan, A. Patruno, E. Perinati, A. Picciotto, C. Piemonte, M. Pinchera, A. Rachevski, M. Rapisarda, N. Rea, E.M.R. Rossi, A. Rubini, G. Sala, X.W. Shu, C. Sgro, Z.X. Shen, P. Soffitta, L.M. Song, G. Spandre, G. Stratta, T.E. Strohmayer, L. Sun, J. Svoboda, G. Tagliaferri, C. Tenzer, T. Hong, R. Taverna, G. Torok, R. Turolla, S. Vacchi, J. Wang, D. Walton, K. Wang, J.F. Wang, R.J. Wang, Y.F. Wang, S.S. Weng, J. Wilms, B. Winter, X. Wu, X.F. Wu, S.L. Xiong, Y.P. Xu, Y.Q. Xue, Z. Yan, S. Yang, X. Yang, Y.J. Yang, F. Yuan, W.M. Yuan, Y.F. Yuan, G. Zampa, N. Zampa, A. Zdziarski, C. Zhang, C.L. Zhang, L. Zhang, X. Zhang, Z. Zhang, W.D. Zhang, S.J. Zheng, P. Zhou, X.L. Zhou, in:, Proceedings of the SPIE, SPIE, 2016.","chicago":"Zhang, S. N., M. Feroci, A. Santangelo, Y. W. Dong, H. Feng, F. J. Lu, K. 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Henzinger, in:, SPIE Proceedings, Society of Photo-Optical Instrumentation Engineers, 2004, pp. 23–26.","chicago":"Henzinger, Monika. “The Past, Present, and Future of Web Information Retrieval.” In <i>SPIE Proceedings</i>, 5296:23–26. Society of Photo-Optical Instrumentation Engineers, 2004. <a href=\"https://doi.org/10.1117/12.537534\">https://doi.org/10.1117/12.537534</a>.","ista":"Henzinger M. 2004. The past, present, and future of web information retrieval. SPIE Proceedings. Document Recognition and Retrieval XI vol. 5296, 23–26.","ama":"Henzinger M. The past, present, and future of web information retrieval. In: <i>SPIE Proceedings</i>. Vol 5296. Society of Photo-Optical Instrumentation Engineers; 2004:23-26. doi:<a href=\"https://doi.org/10.1117/12.537534\">10.1117/12.537534</a>","ieee":"M. Henzinger, “The past, present, and future of web information retrieval,” in <i>SPIE Proceedings</i>, San Jose, CA, United States, 2004, vol. 5296, pp. 23–26.","apa":"Henzinger, M. (2004). The past, present, and future of web information retrieval. In <i>SPIE Proceedings</i> (Vol. 5296, pp. 23–26). San Jose, CA, United States: Society of Photo-Optical Instrumentation Engineers. <a href=\"https://doi.org/10.1117/12.537534\">https://doi.org/10.1117/12.537534</a>"},"publication_status":"published","author":[{"orcid":"0000-0002-5008-6530","full_name":"Henzinger, Monika H","first_name":"Monika H","last_name":"Henzinger","id":"540c9bbd-f2de-11ec-812d-d04a5be85630"}]},{"author":[{"full_name":"Griffiths, Richard","last_name":"Griffiths","first_name":"Richard"},{"full_name":"Petre, Robert","last_name":"Petre","first_name":"Robert"},{"full_name":"Hasinger, Guenther","last_name":"Hasinger","first_name":"Guenther"},{"first_name":"Peter","last_name":"Predehl","full_name":"Predehl, Peter"},{"last_name":"White","first_name":"Nicholas E.","full_name":"White, Nicholas E."},{"first_name":"Bernd","last_name":"Aschenbach","full_name":"Aschenbach, Bernd"},{"full_name":"Barcons, Xavier","first_name":"Xavier","last_name":"Barcons"},{"last_name":"Bohringer","first_name":"Hans","full_name":"Bohringer, Hans"},{"first_name":"Ulrich G.","last_name":"Briel","full_name":"Briel, Ulrich G."},{"last_name":"Cominsky","first_name":"Lynn","full_name":"Cominsky, Lynn"},{"last_name":"Corcoran","first_name":"Michael F.","full_name":"Corcoran, Michael F."},{"full_name":"Dinger, Udo","last_name":"Dinger","first_name":"Udo"},{"full_name":"Egle, Wilhelm J.","first_name":"Wilhelm J.","last_name":"Egle"},{"full_name":"Friedrich, Peter","first_name":"Peter","last_name":"Friedrich"},{"full_name":"Haiman, Zoltán","last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","first_name":"Zoltán"},{"full_name":"Hartmann, Robert","first_name":"Robert","last_name":"Hartmann"},{"last_name":"Henry","first_name":"J. Patrick","full_name":"Henry, J. Patrick"},{"full_name":"Hippmann, Horst","last_name":"Hippmann","first_name":"Horst"},{"full_name":"Ingersoll, Jim","first_name":"Jim","last_name":"Ingersoll"},{"full_name":"Jahoda, Keith","first_name":"Keith","last_name":"Jahoda"},{"full_name":"Jenstrom, Del T.","last_name":"Jenstrom","first_name":"Del T."},{"first_name":"Steven","last_name":"Jordan","full_name":"Jordan, Steven"},{"first_name":"Eckhard","last_name":"Kendziorra","full_name":"Kendziorra, Eckhard"},{"full_name":"Kettenring, G’nther","first_name":"G’nther","last_name":"Kettenring"},{"first_name":"Walter","last_name":"Kink","full_name":"Kink, Walter"},{"first_name":"Norbert","last_name":"Meidinger","full_name":"Meidinger, Norbert"},{"full_name":"Miyaji, Takamitsu","last_name":"Miyaji","first_name":"Takamitsu"},{"full_name":"Mohr, Joseph","last_name":"Mohr","first_name":"Joseph"},{"full_name":"Mueller, Siegfried","first_name":"Siegfried","last_name":"Mueller"},{"last_name":"Mushotzky","first_name":"Richard F.","full_name":"Mushotzky, Richard F."},{"first_name":"Elmar","last_name":"Pfeffermann","full_name":"Pfeffermann, Elmar"},{"last_name":"Schuecker","first_name":"Peter","full_name":"Schuecker, Peter"},{"last_name":"Schwope","first_name":"Axel","full_name":"Schwope, Axel"},{"last_name":"Shannon","first_name":"Mark","full_name":"Shannon, Mark"},{"full_name":"Strueder, Lothar","first_name":"Lothar","last_name":"Strueder"},{"full_name":"Varlese, Steven J.","first_name":"Steven J.","last_name":"Varlese"}],"publication_status":"published","citation":{"mla":"Griffiths, Richard, et al. “DUO: The Dark Universe Observatory.” <i>SPIE Astronomical Telescopes + Instrumentation</i>, edited by Guenther Hasinger and Martin J. L. Turner, vol. 5488, SPIE, 2004, doi:<a href=\"https://doi.org/10.1117/12.552171\">10.1117/12.552171</a>.","chicago":"Griffiths, Richard, Robert Petre, Guenther Hasinger, Peter Predehl, Nicholas E. White, Bernd Aschenbach, Xavier Barcons, et al. “DUO: The Dark Universe Observatory.” In <i>SPIE Astronomical Telescopes + Instrumentation</i>, edited by Guenther Hasinger and Martin J. L. Turner, Vol. 5488. SPIE, 2004. <a href=\"https://doi.org/10.1117/12.552171\">https://doi.org/10.1117/12.552171</a>.","short":"R. Griffiths, R. Petre, G. Hasinger, P. Predehl, N.E. White, B. Aschenbach, X. Barcons, H. Bohringer, U.G. Briel, L. Cominsky, M.F. Corcoran, U. Dinger, W.J. Egle, P. Friedrich, Z. Haiman, R. Hartmann, J.P. Henry, H. Hippmann, J. Ingersoll, K. Jahoda, D.T. Jenstrom, S. Jordan, E. Kendziorra, G. Kettenring, W. Kink, N. Meidinger, T. Miyaji, J. Mohr, S. Mueller, R.F. Mushotzky, E. Pfeffermann, P. Schuecker, A. Schwope, M. Shannon, L. Strueder, S.J. Varlese, in:, G. Hasinger, M.J.L. Turner (Eds.), SPIE Astronomical Telescopes + Instrumentation, SPIE, 2004.","ista":"Griffiths R, Petre R, Hasinger G, Predehl P, White NE, Aschenbach B, Barcons X, Bohringer H, Briel UG, Cominsky L, Corcoran MF, Dinger U, Egle WJ, Friedrich P, Haiman Z, Hartmann R, Henry JP, Hippmann H, Ingersoll J, Jahoda K, Jenstrom DT, Jordan S, Kendziorra E, Kettenring G, Kink W, Meidinger N, Miyaji T, Mohr J, Mueller S, Mushotzky RF, Pfeffermann E, Schuecker P, Schwope A, Shannon M, Strueder L, Varlese SJ. 2004. DUO: The dark universe observatory. SPIE Astronomical Telescopes + Instrumentation. UV and Gamma-Ray Space Telescope Systems vol. 5488.","ama":"Griffiths R, Petre R, Hasinger G, et al. DUO: The dark universe observatory. In: Hasinger G, Turner MJL, eds. <i>SPIE Astronomical Telescopes + Instrumentation</i>. Vol 5488. SPIE; 2004. doi:<a href=\"https://doi.org/10.1117/12.552171\">10.1117/12.552171</a>","apa":"Griffiths, R., Petre, R., Hasinger, G., Predehl, P., White, N. E., Aschenbach, B., … Varlese, S. J. (2004). DUO: The dark universe observatory. In G. Hasinger &#38; M. J. L. Turner (Eds.), <i>SPIE Astronomical Telescopes + Instrumentation</i> (Vol. 5488). Glasgow, United Kingdom: SPIE. <a href=\"https://doi.org/10.1117/12.552171\">https://doi.org/10.1117/12.552171</a>","ieee":"R. Griffiths <i>et al.</i>, “DUO: The dark universe observatory,” in <i>SPIE Astronomical Telescopes + Instrumentation</i>, Glasgow, United Kingdom, 2004, vol. 5488."},"extern":"1","title":"DUO: The dark universe observatory","editor":[{"first_name":"Guenther","last_name":"Hasinger","full_name":"Hasinger, Guenther"},{"full_name":"Turner, Martin J. L.","last_name":"Turner","first_name":"Martin J. L."}],"_id":"17747","publication_identifier":{"issn":["0277-786X"]},"intvolume":"      5488","conference":{"start_date":"2004-06-21","name":"UV and Gamma-Ray Space Telescope Systems","location":"Glasgow, United Kingdom","end_date":"2004-06-25"},"publication":"SPIE Astronomical Telescopes + Instrumentation","type":"conference","oa_version":"None","volume":5488,"article_processing_charge":"No","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","date_created":"2024-09-06T09:35:28Z","scopus_import":"1","quality_controlled":"1","main_file_link":[{"url":"https://doi.org/10.1117/12.552171"}],"language":[{"iso":"eng"}],"publisher":"SPIE","date_published":"2004-10-11T00:00:00Z","date_updated":"2024-09-30T07:13:16Z","abstract":[{"text":"Dark Energy dominates the mass-energy content of the universe (about 73%) but we do not understand it. Most of the remainder of the Universe consists of Dark Matter (23%), made of an unknown particle. The problem of the origin of Dark Energy has become the biggest problem in astrophysics and one of the biggest problems in all of science. The major extant X-ray observatories, the Chandra X-ray Observatory and XMM-Newton, do not have the ability to perform large-area surveys of the sky. But Dark Energy is smoothly distributed throughout the universe and the whole universe is needed to study it. There are two basic methods to explore the properties of Dark Energy, viz. geometrical tests (supernovae) and studies of the way in which Dark Energy has influenced the large scale structure of the universe and its evolution. DUO will use the latter method, employing the copious X-ray emission from clusters of galaxies. Clusters of galaxies offer an ideal probe of cosmology because they are the best tracers of Dark Matter and their distribution on very large scales is dominated by the Dark Energy. In order to take the next step in understanding Dark Energy, viz. the measurement of the 'equation of state' parameter 'w', an X-ray telescope following the design of ABRIXAS will be accommodated into a Small Explorer mission in lowearth orbit. The telescope will perform a scan of 6,000 sq. degs. in the area of sky covered by the Sloan Digital Sky Survey (North), together with a deeper, smaller survey in the Southern hemisphere. DUO will detect 10.000 clusters of galaxies, measure the number density of clusters as a function of cosmic time, and the power spectrum of density fluctuations out to a redshift exceeding one. When combined with the spectrum of density fluctuations in the Cosmic Microwave Background from a redshift of 1100, this will provide a powerful lever arm for the crucial measurement of cosmological parameters.","lang":"eng"}],"doi":"10.1117/12.552171","status":"public","month":"10","day":"11","year":"2004"},{"editor":[{"last_name":"Unser","first_name":"Michael A.","full_name":"Unser, Michael A."},{"full_name":"Aldroubi, Akram","first_name":"Akram","last_name":"Aldroubi"},{"full_name":"Laine, Andrew F.","first_name":"Andrew F.","last_name":"Laine"}],"title":"Separation of reflections via sparse ICA","extern":"1","citation":{"mla":"Bronstein, Alex M., et al. “Separation of Reflections via Sparse ICA.” <i>SPIE Proceedings</i>, edited by Michael A. Unser et al., vol. 5207, no. 1, SPIE, 2003, pp. 292–96, doi:<a href=\"https://doi.org/10.1117/12.505210\">10.1117/12.505210</a>.","short":"A.M. Bronstein, M.M. Bronstein, M. Zibulevsky, Y.Y. Zeevi, in:, M.A. Unser, A. Aldroubi, A.F. Laine (Eds.), SPIE Proceedings, SPIE, 2003, pp. 292–296.","chicago":"Bronstein, Alex M., Michael M. Bronstein, Michael Zibulevsky, and Yehoshua Y. Zeevi. “Separation of Reflections via Sparse ICA.” In <i>SPIE Proceedings</i>, edited by Michael A. Unser, Akram Aldroubi, and Andrew F. Laine, 5207:292–96. SPIE, 2003. <a href=\"https://doi.org/10.1117/12.505210\">https://doi.org/10.1117/12.505210</a>.","ista":"Bronstein AM, Bronstein MM, Zibulevsky M, Zeevi YY. 2003. Separation of reflections via sparse ICA. SPIE Proceedings. Wavelets: Applications in Signal and Image Processing X vol. 5207, 292–296.","ama":"Bronstein AM, Bronstein MM, Zibulevsky M, Zeevi YY. Separation of reflections via sparse ICA. In: Unser MA, Aldroubi A, Laine AF, eds. <i>SPIE Proceedings</i>. Vol 5207. SPIE; 2003:292-296. doi:<a href=\"https://doi.org/10.1117/12.505210\">10.1117/12.505210</a>","apa":"Bronstein, A. M., Bronstein, M. M., Zibulevsky, M., &#38; Zeevi, Y. Y. (2003). Separation of reflections via sparse ICA. In M. A. Unser, A. Aldroubi, &#38; A. F. Laine (Eds.), <i>SPIE Proceedings</i> (Vol. 5207, pp. 292–296). San Diego, CA, United States: SPIE. <a href=\"https://doi.org/10.1117/12.505210\">https://doi.org/10.1117/12.505210</a>","ieee":"A. M. Bronstein, M. M. Bronstein, M. Zibulevsky, and Y. Y. Zeevi, “Separation of reflections via sparse ICA,” in <i>SPIE Proceedings</i>, San Diego, CA, United States, 2003, vol. 5207, no. 1, pp. 292–296."},"publication_status":"published","author":[{"id":"58f3726e-7cba-11ef-ad8b-e6e8cb3904e6","last_name":"Bronstein","first_name":"Alexander","orcid":"0000-0001-9699-8730","full_name":"Bronstein, Alexander"},{"full_name":"Bronstein, Michael M.","first_name":"Michael M.","last_name":"Bronstein"},{"full_name":"Zibulevsky, Michael","last_name":"Zibulevsky","first_name":"Michael"},{"full_name":"Zeevi, Yehoshua Y.","first_name":"Yehoshua Y.","last_name":"Zeevi"}],"oa_version":"None","type":"conference","publication":"SPIE Proceedings","conference":{"start_date":"2003-08-04","name":"Wavelets: Applications in Signal and Image Processing X","end_date":"2003-08-08","location":"San Diego, CA, United States"},"intvolume":"      5207","publication_identifier":{"issn":["0277-786X"],"eissn":["1996-756X"]},"_id":"18428","language":[{"iso":"eng"}],"publisher":"SPIE","issue":"1","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","date_created":"2024-10-15T11:20:55Z","scopus_import":"1","quality_controlled":"1","article_processing_charge":"No","volume":5207,"month":"11","year":"2003","day":"13","doi":"10.1117/12.505210","status":"public","date_updated":"2024-12-19T09:20:04Z","date_published":"2003-11-13T00:00:00Z","page":"292 - 296"}]