--- _id: '429' abstract: - lang: eng text: We consider real symmetric or complex hermitian random matrices with correlated entries. We prove local laws for the resolvent and universality of the local eigenvalue statistics in the bulk of the spectrum. The correlations have fast decay but are otherwise of general form. The key novelty is the detailed stability analysis of the corresponding matrix valued Dyson equation whose solution is the deterministic limit of the resolvent. acknowledgement: "Open access funding provided by Institute of Science and Technology (IST Austria).\r\n" article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Oskari H full_name: Ajanki, Oskari H id: 36F2FB7E-F248-11E8-B48F-1D18A9856A87 last_name: Ajanki - first_name: László full_name: Erdös, László id: 4DBD5372-F248-11E8-B48F-1D18A9856A87 last_name: Erdös orcid: 0000-0001-5366-9603 - first_name: Torben H full_name: Krüger, Torben H id: 3020C786-F248-11E8-B48F-1D18A9856A87 last_name: Krüger orcid: 0000-0002-4821-3297 citation: ama: Ajanki OH, Erdös L, Krüger TH. Stability of the matrix Dyson equation and random matrices with correlations. Probability Theory and Related Fields. 2019;173(1-2):293–373. doi:10.1007/s00440-018-0835-z apa: Ajanki, O. H., Erdös, L., & Krüger, T. H. (2019). Stability of the matrix Dyson equation and random matrices with correlations. Probability Theory and Related Fields. Springer. https://doi.org/10.1007/s00440-018-0835-z chicago: Ajanki, Oskari H, László Erdös, and Torben H Krüger. “Stability of the Matrix Dyson Equation and Random Matrices with Correlations.” Probability Theory and Related Fields. Springer, 2019. https://doi.org/10.1007/s00440-018-0835-z. ieee: O. H. Ajanki, L. Erdös, and T. H. Krüger, “Stability of the matrix Dyson equation and random matrices with correlations,” Probability Theory and Related Fields, vol. 173, no. 1–2. Springer, pp. 293–373, 2019. ista: Ajanki OH, Erdös L, Krüger TH. 2019. Stability of the matrix Dyson equation and random matrices with correlations. Probability Theory and Related Fields. 173(1–2), 293–373. mla: Ajanki, Oskari H., et al. “Stability of the Matrix Dyson Equation and Random Matrices with Correlations.” Probability Theory and Related Fields, vol. 173, no. 1–2, Springer, 2019, pp. 293–373, doi:10.1007/s00440-018-0835-z. short: O.H. Ajanki, L. Erdös, T.H. Krüger, Probability Theory and Related Fields 173 (2019) 293–373. corr_author: '1' date_created: 2018-12-11T11:46:25Z date_published: 2019-02-01T00:00:00Z date_updated: 2026-04-03T09:46:51Z day: '01' ddc: - '510' department: - _id: LaEr doi: 10.1007/s00440-018-0835-z ec_funded: 1 external_id: isi: - '000459396500007' file: - access_level: open_access checksum: f9354fa5c71f9edd17132588f0dc7d01 content_type: application/pdf creator: dernst date_created: 2018-12-17T16:12:08Z date_updated: 2020-07-14T12:46:26Z file_id: '5720' file_name: 2018_ProbTheory_Ajanki.pdf file_size: 1201840 relation: main_file file_date_updated: 2020-07-14T12:46:26Z fulldoi: https://doi.org/10.1007/s00440-018-0835-z has_accepted_license: '1' intvolume: ' 173' isi: 1 issue: 1-2 language: - iso: eng license: https://creativecommons.org/licenses/by/4.0/ month: '02' oa: 1 oa_version: Published Version page: 293–373 project: - _id: 258DCDE6-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '338804' name: Random matrices, universality and disordered quantum systems - _id: B67AFEDC-15C9-11EA-A837-991A96BB2854 name: IST Austria Open Access Fund publication: Probability Theory and Related Fields publication_identifier: eissn: - 1432-2064 issn: - 0178-8051 publication_status: published publisher: Springer publist_id: '7394' quality_controlled: '1' scopus_import: '1' status: public title: Stability of the matrix Dyson equation and random matrices with correlations tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd volume: 173 year: '2019' ... --- _id: '17506' abstract: - lang: eng text: Sandboxing is a common technique that allows low-level, untrusted components to safely interact with trusted code. However, previous work has only investigated the low-level memory isolation guarantees of sandboxing, leaving open the question of the end-to-end guarantees that sandboxing affords programmers. In this paper, we fill this gap by showing that sandboxing enables reasoning about the known concept of robust safety, i.e., safety of the trusted code even in the presence of arbitrary untrusted code. To do this, we first present an idealized operational semantics for a language that combines trusted code with untrusted code. Sandboxing is built into our semantics. Then, we prove that safety properties of the trusted code (as enforced through a rich type system) are upheld in the presence of arbitrary untrusted code, so long as all interactions with untrusted code occur at the “any” type (a type inhabited by all values). Finally, to alleviate the burden of having to interact with untrusted code at only the “any” type, we formalize and prove safe several wrappers, which automatically convert values between the “any” type and much richer types. All our results are mechanized in the Coq proof assistant. article_processing_charge: No article_type: original author: - first_name: Michael Joachim full_name: Sammler, Michael Joachim id: 510d3901-2a03-11ee-914d-d9ae9011f0a7 last_name: Sammler - first_name: Deepak full_name: Garg, Deepak last_name: Garg - first_name: Derek full_name: Dreyer, Derek last_name: Dreyer - first_name: Tadeusz full_name: Litak, Tadeusz last_name: Litak citation: ama: Sammler MJ, Garg D, Dreyer D, Litak T. The high-level benefits of low-level sandboxing. Proceedings of the ACM on Programming Languages. 2019;4(POPL):1-32. doi:10.1145/3371100 apa: Sammler, M. J., Garg, D., Dreyer, D., & Litak, T. (2019). The high-level benefits of low-level sandboxing. Proceedings of the ACM on Programming Languages. Association for Computing Machinery. https://doi.org/10.1145/3371100 chicago: Sammler, Michael Joachim, Deepak Garg, Derek Dreyer, and Tadeusz Litak. “The High-Level Benefits of Low-Level Sandboxing.” Proceedings of the ACM on Programming Languages. Association for Computing Machinery, 2019. https://doi.org/10.1145/3371100. ieee: M. J. Sammler, D. Garg, D. Dreyer, and T. Litak, “The high-level benefits of low-level sandboxing,” Proceedings of the ACM on Programming Languages, vol. 4, no. POPL. Association for Computing Machinery, pp. 1–32, 2019. ista: Sammler MJ, Garg D, Dreyer D, Litak T. 2019. The high-level benefits of low-level sandboxing. Proceedings of the ACM on Programming Languages. 4(POPL), 1–32. mla: Sammler, Michael Joachim, et al. “The High-Level Benefits of Low-Level Sandboxing.” Proceedings of the ACM on Programming Languages, vol. 4, no. POPL, Association for Computing Machinery, 2019, pp. 1–32, doi:10.1145/3371100. short: M.J. Sammler, D. Garg, D. Dreyer, T. Litak, Proceedings of the ACM on Programming Languages 4 (2019) 1–32. date_created: 2024-09-05T08:36:52Z date_published: 2019-12-20T00:00:00Z date_updated: 2024-09-10T09:58:57Z day: '20' doi: 10.1145/3371100 extern: '1' fulldoi: https://doi.org/10.1145/3371100 intvolume: ' 4' issue: POPL language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1145/3371100 month: '12' oa: 1 oa_version: Published Version page: 1-32 publication: Proceedings of the ACM on Programming Languages publication_identifier: issn: - 2475-1421 publication_status: published publisher: Association for Computing Machinery quality_controlled: '1' scopus_import: '1' status: public title: The high-level benefits of low-level sandboxing type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 4 year: '2019' ... --- _id: '17510' abstract: - lang: eng text: Weak lensing surveys are reaching sensitivities at which uncertainties in the galaxy redshift distributions n(z) from photo-z errors degrade cosmological constraints. We use ray-tracing simulations and a simple treatment of photo-z errors to assess cosmological parameter biases from uncertainties in n(z) in an LSST-like survey. We use lensing peak counts and the power spectrum to infer cosmological parameters, and find that the latter is somewhat more resilient to photo-z errors. We place conservative lower limits on the survey size at which different types of photo-z errors significantly degrade (${\sim }50{{\ \rm per\ cent}}$) ΛCDM (cold dark matter, wCDM) parameter constraints. A residual constant photo-z bias of |δz| &lt; 0.003(1 + z), the current LSST requirement, does not significantly degrade surveys smaller than ≈1300 (≈490) deg2 using peaks and ≈6500 (≈4900) deg2 using the power spectrum. Surveys smaller than ≈920 (≈450) deg2 and ≈4600 (≈4000) deg2 avoid 25 per cent degradation. Adopting a recent prediction for LSST’s full photo-z probability distribution function (PDF), we find that simply approximating n(z) with the photo-z galaxy distribution computed from this PDF significantly degrades surveys as small as ≈60 (≈65) deg2 using peaks or the power spectrum. If the centroid bias in each tomographic bin is removed from the photo-z galaxy distribution, using peaks or the power spectrum still significantly degrades surveys larger than ≈200 (≈255) or ≈248 (≈315) deg2; 25 per cent degradations occur at survey sizes of ≈140 (≈180) deg2 or ≈165 (≈210) deg2. These results imply that the expected broad photo-z PDF significantly biases parameters, which must be further mitigated using more sophisticated photo-z treatments. article_processing_charge: No article_type: original author: - first_name: Matthew W full_name: Abruzzo, Matthew W last_name: Abruzzo - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: Abruzzo MW, Haiman Z. The impact of photometric redshift errors on lensing statistics in ray-tracing simulations. Monthly Notices of the Royal Astronomical Society. 2019;486(2):2730-2753. doi:10.1093/mnras/stz1016 apa: Abruzzo, M. W., & Haiman, Z. (2019). The impact of photometric redshift errors on lensing statistics in ray-tracing simulations. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stz1016 chicago: Abruzzo, Matthew W, and Zoltán Haiman. “The Impact of Photometric Redshift Errors on Lensing Statistics in Ray-Tracing Simulations.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2019. https://doi.org/10.1093/mnras/stz1016. ieee: M. W. Abruzzo and Z. Haiman, “The impact of photometric redshift errors on lensing statistics in ray-tracing simulations,” Monthly Notices of the Royal Astronomical Society, vol. 486, no. 2. Oxford University Press, pp. 2730–2753, 2019. ista: Abruzzo MW, Haiman Z. 2019. The impact of photometric redshift errors on lensing statistics in ray-tracing simulations. Monthly Notices of the Royal Astronomical Society. 486(2), 2730–2753. mla: Abruzzo, Matthew W., and Zoltán Haiman. “The Impact of Photometric Redshift Errors on Lensing Statistics in Ray-Tracing Simulations.” Monthly Notices of the Royal Astronomical Society, vol. 486, no. 2, Oxford University Press, 2019, pp. 2730–53, doi:10.1093/mnras/stz1016. short: M.W. Abruzzo, Z. Haiman, Monthly Notices of the Royal Astronomical Society 486 (2019) 2730–2753. date_created: 2024-09-05T08:49:24Z date_published: 2019-04-18T00:00:00Z date_updated: 2024-09-10T12:49:04Z day: '18' doi: 10.1093/mnras/stz1016 extern: '1' fulldoi: https://doi.org/10.1093/mnras/stz1016 intvolume: ' 486' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stz1016 month: '04' oa: 1 oa_version: Published Version page: 2730-2753 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: The impact of photometric redshift errors on lensing statistics in ray-tracing simulations type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 486 year: '2019' ... --- _id: '17511' article_number: '019' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Gabriela A. full_name: Marques, Gabriela A. last_name: Marques - first_name: Jia full_name: Liu, Jia last_name: Liu - first_name: José Manuel Zorrilla full_name: Matilla, José Manuel Zorrilla last_name: Matilla - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Armando full_name: Bernui, Armando last_name: Bernui - first_name: Camila P. full_name: Novaes, Camila P. last_name: Novaes citation: ama: Marques GA, Liu J, Matilla JMZ, Haiman Z, Bernui A, Novaes CP. Constraining neutrino mass with weak lensing Minkowski Functionals. Journal of Cosmology and Astroparticle Physics. 2019;2019(06). doi:10.1088/1475-7516/2019/06/019 apa: Marques, G. A., Liu, J., Matilla, J. M. Z., Haiman, Z., Bernui, A., & Novaes, C. P. (2019). Constraining neutrino mass with weak lensing Minkowski Functionals. Journal of Cosmology and Astroparticle Physics. IOP Publishing. https://doi.org/10.1088/1475-7516/2019/06/019 chicago: Marques, Gabriela A., Jia Liu, José Manuel Zorrilla Matilla, Zoltán Haiman, Armando Bernui, and Camila P. Novaes. “Constraining Neutrino Mass with Weak Lensing Minkowski Functionals.” Journal of Cosmology and Astroparticle Physics. IOP Publishing, 2019. https://doi.org/10.1088/1475-7516/2019/06/019. ieee: G. A. Marques, J. Liu, J. M. Z. Matilla, Z. Haiman, A. Bernui, and C. P. Novaes, “Constraining neutrino mass with weak lensing Minkowski Functionals,” Journal of Cosmology and Astroparticle Physics, vol. 2019, no. 06. IOP Publishing, 2019. ista: Marques GA, Liu J, Matilla JMZ, Haiman Z, Bernui A, Novaes CP. 2019. Constraining neutrino mass with weak lensing Minkowski Functionals. Journal of Cosmology and Astroparticle Physics. 2019(06), 019. mla: Marques, Gabriela A., et al. “Constraining Neutrino Mass with Weak Lensing Minkowski Functionals.” Journal of Cosmology and Astroparticle Physics, vol. 2019, no. 06, 019, IOP Publishing, 2019, doi:10.1088/1475-7516/2019/06/019. short: G.A. Marques, J. Liu, J.M.Z. Matilla, Z. Haiman, A. Bernui, C.P. Novaes, Journal of Cosmology and Astroparticle Physics 2019 (2019). date_created: 2024-09-05T08:50:20Z date_published: 2019-06-07T00:00:00Z date_updated: 2024-09-10T13:10:34Z day: '07' doi: 10.1088/1475-7516/2019/06/019 extern: '1' external_id: arxiv: - '1812.08206' fulldoi: https://doi.org/10.1088/1475-7516/2019/06/019 intvolume: ' 2019' issue: '06' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1812.08206' month: '06' oa: 1 oa_version: Preprint publication: Journal of Cosmology and Astroparticle Physics publication_identifier: issn: - 1475-7516 publication_status: published publisher: IOP Publishing quality_controlled: '1' scopus_import: '1' status: public title: Constraining neutrino mass with weak lensing Minkowski Functionals type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 2019 year: '2019' ... --- _id: '17512' abstract: - lang: eng text: 'The localization of stellar-mass binary black hole mergers using gravitational waves is critical in understanding the properties of the binaries’ host galaxies, observing possible electromagnetic emission from the mergers, or using them as a cosmological distance ladder. The precision of this localization can be substantially increased with prior astrophysical information about the binary system. In particular, constraining the inclination of the binary can reduce the distance uncertainty of the source. Here, we present the first realistic set of localizations for binary black hole mergers, including different prior constraints on the binaries’ inclinations. We find that prior information on the inclination can reduce the localization volume by a factor of 3. We discuss two astrophysical scenarios of interest: (i) follow-up searches for beamed electromagnetic/neutrino counterparts and (ii) mergers in the accretion discs of active galactic nuclei.' article_processing_charge: No article_type: original author: - first_name: K Rainer full_name: Corley, K Rainer last_name: Corley - first_name: Imre full_name: Bartos, Imre last_name: Bartos - first_name: Leo P full_name: Singer, Leo P last_name: Singer - first_name: Andrew R full_name: Williamson, Andrew R last_name: Williamson - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Bence full_name: Kocsis, Bence last_name: Kocsis - first_name: Samaya full_name: Nissanke, Samaya last_name: Nissanke - first_name: Zsuzsa full_name: Márka, Zsuzsa last_name: Márka - first_name: Szabolcs full_name: Márka, Szabolcs last_name: Márka citation: ama: Corley KR, Bartos I, Singer LP, et al. Localization of binary black hole mergers with known inclination. Monthly Notices of the Royal Astronomical Society. 2019;488(3):4459-4463. doi:10.1093/mnras/stz2072 apa: Corley, K. R., Bartos, I., Singer, L. P., Williamson, A. R., Haiman, Z., Kocsis, B., … Márka, S. (2019). Localization of binary black hole mergers with known inclination. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stz2072 chicago: Corley, K Rainer, Imre Bartos, Leo P Singer, Andrew R Williamson, Zoltán Haiman, Bence Kocsis, Samaya Nissanke, Zsuzsa Márka, and Szabolcs Márka. “Localization of Binary Black Hole Mergers with Known Inclination.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2019. https://doi.org/10.1093/mnras/stz2072. ieee: K. R. Corley et al., “Localization of binary black hole mergers with known inclination,” Monthly Notices of the Royal Astronomical Society, vol. 488, no. 3. Oxford University Press, pp. 4459–4463, 2019. ista: Corley KR, Bartos I, Singer LP, Williamson AR, Haiman Z, Kocsis B, Nissanke S, Márka Z, Márka S. 2019. Localization of binary black hole mergers with known inclination. Monthly Notices of the Royal Astronomical Society. 488(3), 4459–4463. mla: Corley, K. Rainer, et al. “Localization of Binary Black Hole Mergers with Known Inclination.” Monthly Notices of the Royal Astronomical Society, vol. 488, no. 3, Oxford University Press, 2019, pp. 4459–63, doi:10.1093/mnras/stz2072. short: K.R. Corley, I. Bartos, L.P. Singer, A.R. Williamson, Z. Haiman, B. Kocsis, S. Nissanke, Z. Márka, S. Márka, Monthly Notices of the Royal Astronomical Society 488 (2019) 4459–4463. date_created: 2024-09-05T08:51:22Z date_published: 2019-07-30T00:00:00Z date_updated: 2024-09-10T13:26:28Z day: '30' doi: 10.1093/mnras/stz2072 extern: '1' fulldoi: https://doi.org/10.1093/mnras/stz2072 intvolume: ' 488' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stz2072 month: '07' oa: 1 oa_version: Published Version page: 4459-4463 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: Localization of binary black hole mergers with known inclination type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 488 year: '2019' ... --- _id: '17530' abstract: - lang: eng text: Based on the cosmic shear data from the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS), Kilbinger et al. (2013) obtained a constraint on the amplitude of matter fluctuations of σ8(Ωm/0.27)0.6=0.79±0.03 from the two-point correlation function (2PCF). This is ≈3σ lower than the value 0.89±0.01 derived from Planck data on cosmic microwave background (CMB) anisotropies. On the other hand, based on the same CFHTLenS data, but using the power spectrum, and performing a different analysis, Liu et al. (2015) obtained the higher value of σ8(Ωm/0.27)0.64=0.87+0.05−0.06. We here investigate the origin of this difference, by performing a fair side-by-side comparison of the 2PCF and power spectrum analyses on CFHTLenS data. We find that these two statistics indeed deliver different results, even when applied to the same data in an otherwise identical procedure. We identify excess power in the data on small scales (ℓ>5,000) driving the larger values inferred from the power spectrum. We speculate on the possible origin of this excess small-scale power. More generally, our results highlight the utility of analysing the 2PCF and the power spectrum in tandem, to discover (and to help control) systematic errors. article_processing_charge: No article_type: original author: - first_name: Tianhuan full_name: Lu, Tianhuan last_name: Lu - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: Lu T, Haiman Z. The matter fluctuation amplitude inferred from the weak lensing power spectrum and correlation function in CFHTLenS data. Monthly Notices of the Royal Astronomical Society. 2019;490(4):5033-5042. doi:10.1093/mnras/stz2931 apa: Lu, T., & Haiman, Z. (2019). The matter fluctuation amplitude inferred from the weak lensing power spectrum and correlation function in CFHTLenS data. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stz2931 chicago: Lu, Tianhuan, and Zoltán Haiman. “The Matter Fluctuation Amplitude Inferred from the Weak Lensing Power Spectrum and Correlation Function in CFHTLenS Data.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2019. https://doi.org/10.1093/mnras/stz2931. ieee: T. Lu and Z. Haiman, “The matter fluctuation amplitude inferred from the weak lensing power spectrum and correlation function in CFHTLenS data,” Monthly Notices of the Royal Astronomical Society, vol. 490, no. 4. Oxford University Press, pp. 5033–5042, 2019. ista: Lu T, Haiman Z. 2019. The matter fluctuation amplitude inferred from the weak lensing power spectrum and correlation function in CFHTLenS data. Monthly Notices of the Royal Astronomical Society. 490(4), 5033–5042. mla: Lu, Tianhuan, and Zoltán Haiman. “The Matter Fluctuation Amplitude Inferred from the Weak Lensing Power Spectrum and Correlation Function in CFHTLenS Data.” Monthly Notices of the Royal Astronomical Society, vol. 490, no. 4, Oxford University Press, 2019, pp. 5033–42, doi:10.1093/mnras/stz2931. short: T. Lu, Z. Haiman, Monthly Notices of the Royal Astronomical Society 490 (2019) 5033–5042. date_created: 2024-09-05T09:37:20Z date_published: 2019-10-18T00:00:00Z date_updated: 2024-09-11T08:01:58Z day: '18' doi: 10.1093/mnras/stz2931 extern: '1' fulldoi: https://doi.org/10.1093/mnras/stz2931 intvolume: ' 490' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stz2931 month: '10' oa: 1 oa_version: Published Version page: 5033-5042 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' related_material: link: - relation: erratum url: https://doi.org/10.1093/mnras/stad1748 scopus_import: '1' status: public title: The matter fluctuation amplitude inferred from the weak lensing power spectrum and correlation function in CFHTLenS data type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 490 year: '2019' ... --- _id: '17533' abstract: - lang: eng text: "The origins of the stellar-mass black hole mergers discovered by LIGO/Virgo are still unknown. Here we show that if migration traps develop in the accretion disks of active galactic nuclei (AGNs) and promote the mergers of their captive black holes, the majority of black holes within disks will undergo hierarchical mergers—with one of the black holes being the remnant of a previous merger. 40% of AGN-assisted mergers detected by LIGO/Virgo will include a black hole with mass ≳50⁢\U0001D440⊙, the mass limit from stellar core collapse. Hierarchical mergers at traps in AGNs will exhibit black hole spins (anti)aligned with the binary’s orbital axis, a distinct property from other hierarchical channels. Our results suggest, although not definitively (with odds ratio of ∼1), that LIGO’s heaviest merger so far, GW170729, could have originated from this channel." article_number: '181101' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Y. full_name: Yang, Y. last_name: Yang - first_name: I. full_name: Bartos, I. last_name: Bartos - first_name: V. full_name: Gayathri, V. last_name: Gayathri - first_name: K. E. S. full_name: Ford, K. E. S. last_name: Ford - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: S. full_name: Klimenko, S. last_name: Klimenko - first_name: B. full_name: Kocsis, B. last_name: Kocsis - first_name: S. full_name: Márka, S. last_name: Márka - first_name: Z. full_name: Márka, Z. last_name: Márka - first_name: B. full_name: McKernan, B. last_name: McKernan - first_name: R. full_name: O’Shaughnessy, R. last_name: O’Shaughnessy citation: ama: Yang Y, Bartos I, Gayathri V, et al. Hierarchical black hole mergers in active galactic nuclei. Physical Review Letters. 2019;123(18). doi:10.1103/physrevlett.123.181101 apa: Yang, Y., Bartos, I., Gayathri, V., Ford, K. E. S., Haiman, Z., Klimenko, S., … O’Shaughnessy, R. (2019). Hierarchical black hole mergers in active galactic nuclei. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.123.181101 chicago: Yang, Y., I. Bartos, V. Gayathri, K. E. S. Ford, Zoltán Haiman, S. Klimenko, B. Kocsis, et al. “Hierarchical Black Hole Mergers in Active Galactic Nuclei.” Physical Review Letters. American Physical Society, 2019. https://doi.org/10.1103/physrevlett.123.181101. ieee: Y. Yang et al., “Hierarchical black hole mergers in active galactic nuclei,” Physical Review Letters, vol. 123, no. 18. American Physical Society, 2019. ista: Yang Y, Bartos I, Gayathri V, Ford KES, Haiman Z, Klimenko S, Kocsis B, Márka S, Márka Z, McKernan B, O’Shaughnessy R. 2019. Hierarchical black hole mergers in active galactic nuclei. Physical Review Letters. 123(18), 181101. mla: Yang, Y., et al. “Hierarchical Black Hole Mergers in Active Galactic Nuclei.” Physical Review Letters, vol. 123, no. 18, 181101, American Physical Society, 2019, doi:10.1103/physrevlett.123.181101. short: Y. Yang, I. Bartos, V. Gayathri, K.E.S. Ford, Z. Haiman, S. Klimenko, B. Kocsis, S. Márka, Z. Márka, B. McKernan, R. O’Shaughnessy, Physical Review Letters 123 (2019). date_created: 2024-09-05T09:39:53Z date_published: 2019-11-01T00:00:00Z date_updated: 2024-09-11T14:39:29Z day: '1' doi: 10.1103/physrevlett.123.181101 extern: '1' external_id: arxiv: - '1906.09281' fulldoi: https://doi.org/10.1103/physrevlett.123.181101 intvolume: ' 123' issue: '18' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1906.09281' month: '11' oa: 1 oa_version: Preprint publication: Physical Review Letters publication_identifier: issn: - 0031-9007 - 1079-7114 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Hierarchical black hole mergers in active galactic nuclei type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 123 year: '2019' ... --- _id: '17541' abstract: - lang: eng text: 'In recent years, the discovery of massive quasars at z~7 has provided a striking challenge to our understanding of the origin and growth of supermassive black holes in the early Universe. Mounting observational and theoretical evidence indicates the viability of massive seeds, formed by the collapse of supermassive stars, as a progenitor model for such early, massive accreting black holes. Although considerable progress has been made in our theoretical understanding, many questions remain regarding how (and how often) such objects may form, how they live and die, and how next generation observatories may yield new insight into the origin of these primordial titans. This review focusses on our present understanding of this remarkable formation scenario, based on discussions held at the Monash Prato Centre from November 20--24, 2017, during the workshop "Titans of the Early Universe: The Origin of the First Supermassive Black Holes."' article_number: e027 article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Tyrone E. full_name: Woods, Tyrone E. last_name: Woods - first_name: Bhaskar full_name: Agarwal, Bhaskar last_name: Agarwal - first_name: Volker full_name: Bromm, Volker last_name: Bromm - first_name: Andrew full_name: Bunker, Andrew last_name: Bunker - first_name: Ke-Jung full_name: Chen, Ke-Jung last_name: Chen - first_name: Sunmyon full_name: Chon, Sunmyon last_name: Chon - first_name: Andrea full_name: Ferrara, Andrea last_name: Ferrara - first_name: Simon C. O. full_name: Glover, Simon C. O. last_name: Glover - first_name: Lionel full_name: Haemmerlé, Lionel last_name: Haemmerlé - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Tilman full_name: Hartwig, Tilman last_name: Hartwig - first_name: Alexander full_name: Heger, Alexander last_name: Heger - first_name: Shingo full_name: Hirano, Shingo last_name: Hirano - first_name: Takashi full_name: Hosokawa, Takashi last_name: Hosokawa - first_name: Kohei full_name: Inayoshi, Kohei last_name: Inayoshi - first_name: Ralf S. full_name: Klessen, Ralf S. last_name: Klessen - first_name: Chiaki full_name: Kobayashi, Chiaki last_name: Kobayashi - first_name: Filippos full_name: Koliopanos, Filippos last_name: Koliopanos - first_name: Muhammad A. full_name: Latif, Muhammad A. last_name: Latif - first_name: Yuexing full_name: Li, Yuexing last_name: Li - first_name: Lucio full_name: Mayer, Lucio last_name: Mayer - first_name: Mar full_name: Mezcua, Mar last_name: Mezcua - first_name: Priyamvada full_name: Natarajan, Priyamvada last_name: Natarajan - first_name: Fabio full_name: Pacucci, Fabio last_name: Pacucci - first_name: Martin J. full_name: Rees, Martin J. last_name: Rees - first_name: John A. full_name: Regan, John A. last_name: Regan - first_name: Yuya full_name: Sakurai, Yuya last_name: Sakurai - first_name: Stefania full_name: Salvadori, Stefania last_name: Salvadori - first_name: Raffaella full_name: Schneider, Raffaella last_name: Schneider - first_name: Marco full_name: Surace, Marco last_name: Surace - first_name: Takamitsu L. full_name: Tanaka, Takamitsu L. last_name: Tanaka - first_name: Daniel J. full_name: Whalen, Daniel J. last_name: Whalen - first_name: Naoki full_name: Yoshida, Naoki last_name: Yoshida citation: ama: 'Woods TE, Agarwal B, Bromm V, et al. Titans of the early universe: The prato statement on the origin of the first supermassive black holes. Publications of the Astronomical Society of Australia. 2019;36. doi:10.1017/pasa.2019.14' apa: 'Woods, T. E., Agarwal, B., Bromm, V., Bunker, A., Chen, K.-J., Chon, S., … Yoshida, N. (2019). Titans of the early universe: The prato statement on the origin of the first supermassive black holes. Publications of the Astronomical Society of Australia. Cambridge University Press. https://doi.org/10.1017/pasa.2019.14' chicago: 'Woods, Tyrone E., Bhaskar Agarwal, Volker Bromm, Andrew Bunker, Ke-Jung Chen, Sunmyon Chon, Andrea Ferrara, et al. “Titans of the Early Universe: The Prato Statement on the Origin of the First Supermassive Black Holes.” Publications of the Astronomical Society of Australia. Cambridge University Press, 2019. https://doi.org/10.1017/pasa.2019.14.' ieee: 'T. E. Woods et al., “Titans of the early universe: The prato statement on the origin of the first supermassive black holes,” Publications of the Astronomical Society of Australia, vol. 36. Cambridge University Press, 2019.' ista: 'Woods TE, Agarwal B, Bromm V, Bunker A, Chen K-J, Chon S, Ferrara A, Glover SCO, Haemmerlé L, Haiman Z, Hartwig T, Heger A, Hirano S, Hosokawa T, Inayoshi K, Klessen RS, Kobayashi C, Koliopanos F, Latif MA, Li Y, Mayer L, Mezcua M, Natarajan P, Pacucci F, Rees MJ, Regan JA, Sakurai Y, Salvadori S, Schneider R, Surace M, Tanaka TL, Whalen DJ, Yoshida N. 2019. Titans of the early universe: The prato statement on the origin of the first supermassive black holes. Publications of the Astronomical Society of Australia. 36, e027.' mla: 'Woods, Tyrone E., et al. “Titans of the Early Universe: The Prato Statement on the Origin of the First Supermassive Black Holes.” Publications of the Astronomical Society of Australia, vol. 36, e027, Cambridge University Press, 2019, doi:10.1017/pasa.2019.14.' short: T.E. Woods, B. Agarwal, V. Bromm, A. Bunker, K.-J. Chen, S. Chon, A. Ferrara, S.C.O. Glover, L. Haemmerlé, Z. Haiman, T. Hartwig, A. Heger, S. Hirano, T. Hosokawa, K. Inayoshi, R.S. Klessen, C. Kobayashi, F. Koliopanos, M.A. Latif, Y. Li, L. Mayer, M. Mezcua, P. Natarajan, F. Pacucci, M.J. Rees, J.A. Regan, Y. Sakurai, S. Salvadori, R. Schneider, M. Surace, T.L. Tanaka, D.J. Whalen, N. Yoshida, Publications of the Astronomical Society of Australia 36 (2019). date_created: 2024-09-05T09:57:20Z date_published: 2019-08-06T00:00:00Z date_updated: 2024-09-12T13:20:41Z day: '06' doi: 10.1017/pasa.2019.14 extern: '1' external_id: arxiv: - '1810.12310' fulldoi: https://doi.org/10.1017/pasa.2019.14 intvolume: ' 36' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1810.12310' month: '08' oa: 1 oa_version: Preprint publication: Publications of the Astronomical Society of Australia publication_identifier: issn: - 1323-3580 - 1448-6083 publication_status: published publisher: Cambridge University Press quality_controlled: '1' scopus_import: '1' status: public title: 'Titans of the early universe: The prato statement on the origin of the first supermassive black holes' type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 36 year: '2019' ... --- _id: '17543' abstract: - lang: eng text: 'Massive black-hole (MBH) binaries, which are expected to form following the merger of their parent galaxies, produce gravitational waves which will be detectable by Pulsar Timing Arrays at nanohertz frequencies (year periods). While no confirmed, compact MBH binary systems have been seen in electromagnetic observations, a large number of candidates have recently been identified in optical surveys of AGN variability. Using a combination of cosmological, hydrodynamic simulations; comprehensive, semi-analytic binary merger models; and analytic AGN spectra and variability prescriptions; we calculate the expected electromagnetic detection rates of MBH binaries as periodically variable AGN. In particular, we consider two independent variability models: (i) Doppler boosting due to large orbital velocities, and (ii) hydrodynamic variability in which the fueling of MBH accretion disks is periodically modulated by the companion. Our models predict that numerous MBH binaries should be present and distinguishable in the existing data. In particular, our fiducial models produce an expectation value of 0.2 (Doppler) and 5 (hydrodynamic) binaries to be identifiable in CRTS, while 20 and 100 are expected after five years of LSST observations. The brightness variations in most systems are too small to be distinguishable, but almost 1% of AGN at redshifts z≲0.6 could be in massive binaries. We analyze the predicted binary parameters of observable systems and their selection biases, and include an extensive discussion of our model parameters and uncertainties.' article_processing_charge: No article_type: original author: - first_name: Luke Zoltan full_name: Kelley, Luke Zoltan last_name: Kelley - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Alberto full_name: Sesana, Alberto last_name: Sesana - first_name: Lars full_name: Hernquist, Lars last_name: Hernquist citation: ama: Kelley LZ, Haiman Z, Sesana A, Hernquist L. Massive BH binaries as periodically variable AGN. Monthly Notices of the Royal Astronomical Society. 2019;485(2):1579-1594. doi:10.1093/mnras/stz150 apa: Kelley, L. Z., Haiman, Z., Sesana, A., & Hernquist, L. (2019). Massive BH binaries as periodically variable AGN. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stz150 chicago: Kelley, Luke Zoltan, Zoltán Haiman, Alberto Sesana, and Lars Hernquist. “Massive BH Binaries as Periodically Variable AGN.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2019. https://doi.org/10.1093/mnras/stz150. ieee: L. Z. Kelley, Z. Haiman, A. Sesana, and L. Hernquist, “Massive BH binaries as periodically variable AGN,” Monthly Notices of the Royal Astronomical Society, vol. 485, no. 2. Oxford University Press, pp. 1579–1594, 2019. ista: Kelley LZ, Haiman Z, Sesana A, Hernquist L. 2019. Massive BH binaries as periodically variable AGN. Monthly Notices of the Royal Astronomical Society. 485(2), 1579–1594. mla: Kelley, Luke Zoltan, et al. “Massive BH Binaries as Periodically Variable AGN.” Monthly Notices of the Royal Astronomical Society, vol. 485, no. 2, Oxford University Press, 2019, pp. 1579–94, doi:10.1093/mnras/stz150. short: L.Z. Kelley, Z. Haiman, A. Sesana, L. Hernquist, Monthly Notices of the Royal Astronomical Society 485 (2019) 1579–1594. date_created: 2024-09-05T09:59:54Z date_published: 2019-01-30T00:00:00Z date_updated: 2024-09-18T08:52:07Z day: '30' doi: 10.1093/mnras/stz150 extern: '1' fulldoi: https://doi.org/10.1093/mnras/stz150 intvolume: ' 485' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stz150 month: '01' oa: 1 oa_version: Published Version page: 1579-1594 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: Massive BH binaries as periodically variable AGN type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 485 year: '2019' ... --- _id: '17556' abstract: - lang: eng text: The abundance of molecular hydrogen (H2), the primary coolant in primordial gas, is critical for the thermodynamic evolution and star-formation histories in early protogalaxies. Determining the photodissociation rate of H2 by an incident Lyman-Werner (LW) flux is thus crucial, but prohibitively expensive to calculate on the fly in simulations. The rate is sensitive to the H2 rovibrational distribution, which in turn depends on the gas density, temperature, and incident LW radiation field. We use the publicly available cloudy package to model primordial gas clouds and compare exact photodissociation rate calculations to commonly-used fitting formulae. We find the fit from Wolcott-Green et al. (2011) is most accurate for moderate densities n~10^3 cm^{-3} and temperatures, T~10^3K, and we provide a new fit, which captures the increase in the rate at higher densities and temperatures, owing to the increased excited rovibrational populations in this regime. Our new fit has typical errors of a few percent percent up to n =<10^7 cm^{-3}, T =< 8000K, and H2 column density NH2 =<10^{17} cm^{-2}, and can be easily utilized in simulations. We also show that pumping of the excited rovibrational states of H2 by a strong LW flux further modifies the level populations when the gas density is low, and noticeably decreases self-shielding for J_21 > 10^3 and n < 10^2 cm^{-3}. This may lower the "critical flux" at which primordial gas remains H2-poor in some protogalaxies, enabling massive black hole seed formation. article_processing_charge: No article_type: original author: - first_name: J full_name: Wolcott-Green, J last_name: Wolcott-Green - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: 'Wolcott-Green J, Haiman Z. H2 self-shielding with non-LTE rovibrational populations: Implications for cooling in protogalaxies. Monthly Notices of the Royal Astronomical Society. 2019;484(2):2467-2473. doi:10.1093/mnras/sty3280' apa: 'Wolcott-Green, J., & Haiman, Z. (2019). H2 self-shielding with non-LTE rovibrational populations: Implications for cooling in protogalaxies. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/sty3280' chicago: 'Wolcott-Green, J, and Zoltán Haiman. “H2 Self-Shielding with Non-LTE Rovibrational Populations: Implications for Cooling in Protogalaxies.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2019. https://doi.org/10.1093/mnras/sty3280.' ieee: 'J. Wolcott-Green and Z. Haiman, “H2 self-shielding with non-LTE rovibrational populations: Implications for cooling in protogalaxies,” Monthly Notices of the Royal Astronomical Society, vol. 484, no. 2. Oxford University Press, pp. 2467–2473, 2019.' ista: 'Wolcott-Green J, Haiman Z. 2019. H2 self-shielding with non-LTE rovibrational populations: Implications for cooling in protogalaxies. Monthly Notices of the Royal Astronomical Society. 484(2), 2467–2473.' mla: 'Wolcott-Green, J., and Zoltán Haiman. “H2 Self-Shielding with Non-LTE Rovibrational Populations: Implications for Cooling in Protogalaxies.” Monthly Notices of the Royal Astronomical Society, vol. 484, no. 2, Oxford University Press, 2019, pp. 2467–73, doi:10.1093/mnras/sty3280.' short: J. Wolcott-Green, Z. Haiman, Monthly Notices of the Royal Astronomical Society 484 (2019) 2467–2473. date_created: 2024-09-05T10:24:40Z date_published: 2019-01-16T00:00:00Z date_updated: 2024-09-18T12:00:29Z day: '16' doi: 10.1093/mnras/sty3280 extern: '1' fulldoi: https://doi.org/10.1093/mnras/sty3280 intvolume: ' 484' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/sty3280 month: '01' oa: 1 oa_version: Published Version page: 2467-2473 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: 'H2 self-shielding with non-LTE rovibrational populations: Implications for cooling in protogalaxies' type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 484 year: '2019' ... --- _id: '17565' abstract: - lang: eng text: 'The coalescence of a compact object with a 104−107M⊙ supermassive black hole (SMBH) produces mHz gravitational waves (GWs) detectable by the future Laser Interferometer Space Antenna (LISA). If such an inspiral occurs in the accretion disc of an active galactic nucleus (AGN), the gas torques imprint a small deviation in the GW waveform. Here we present two-dimensional hydrodynamical simulations with the moving-mesh code DISCO of a BH inspiraling at the GW rate in a binary system with a mass ratio q=M2/M1=10−3, embedded in an accretion disc. We assume a locally isothermal equation of state for the gas (with Mach number M=20) and implement a standard α-prescription for its viscosity (with α=0.03). We find disc torques on the binary that are weaker than in previous semi-analytic toy models, and are in the opposite direction: the gas disc slows down, rather than speeds up the inspiral. We compute the resulting deviations in the GW waveform, which scale linearly with the mass of the disc. The SNR of these deviations accumulates mostly at high frequencies, and becomes detectable in a 5-year LISA observation if the total phase shift exceeds a few radians. We find that this occurs if the disc surface density exceeds Σ0≳102−3gcm−2, as may be the case in thin discs with near-Eddington accretion rates. Since the characteristic imprint on the GW signal is strongly dependent on disc parameters, a LISA detection of an intermediate mass ratio inspiral would probe the physics of AGN discs and migration.' article_processing_charge: No article_type: original author: - first_name: A M full_name: Derdzinski, A M last_name: Derdzinski - first_name: D full_name: D’Orazio, D last_name: D’Orazio - first_name: P full_name: Duffell, P last_name: Duffell - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: A full_name: MacFadyen, A last_name: MacFadyen citation: ama: 'Derdzinski AM, D’Orazio D, Duffell P, Haiman Z, MacFadyen A. Probing gas disc physics with LISA: simulations of an intermediate mass ratio inspiral in an accretion disc. Monthly Notices of the Royal Astronomical Society. 2019;486(2):2754-2765. doi:10.1093/mnras/stz1026' apa: 'Derdzinski, A. M., D’Orazio, D., Duffell, P., Haiman, Z., & MacFadyen, A. (2019). Probing gas disc physics with LISA: simulations of an intermediate mass ratio inspiral in an accretion disc. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stz1026' chicago: 'Derdzinski, A M, D D’Orazio, P Duffell, Zoltán Haiman, and A MacFadyen. “Probing Gas Disc Physics with LISA: Simulations of an Intermediate Mass Ratio Inspiral in an Accretion Disc.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2019. https://doi.org/10.1093/mnras/stz1026.' ieee: 'A. M. Derdzinski, D. D’Orazio, P. Duffell, Z. Haiman, and A. MacFadyen, “Probing gas disc physics with LISA: simulations of an intermediate mass ratio inspiral in an accretion disc,” Monthly Notices of the Royal Astronomical Society, vol. 486, no. 2. Oxford University Press, pp. 2754–2765, 2019.' ista: 'Derdzinski AM, D’Orazio D, Duffell P, Haiman Z, MacFadyen A. 2019. Probing gas disc physics with LISA: simulations of an intermediate mass ratio inspiral in an accretion disc. Monthly Notices of the Royal Astronomical Society. 486(2), 2754–2765.' mla: 'Derdzinski, A. M., et al. “Probing Gas Disc Physics with LISA: Simulations of an Intermediate Mass Ratio Inspiral in an Accretion Disc.” Monthly Notices of the Royal Astronomical Society, vol. 486, no. 2, Oxford University Press, 2019, pp. 2754–65, doi:10.1093/mnras/stz1026.' short: A.M. Derdzinski, D. D’Orazio, P. Duffell, Z. Haiman, A. MacFadyen, Monthly Notices of the Royal Astronomical Society 486 (2019) 2754–2765. date_created: 2024-09-05T12:05:43Z date_published: 2019-09-05T00:00:00Z date_updated: 2024-09-18T11:01:36Z day: '05' doi: 10.1093/mnras/stz1026 extern: '1' fulldoi: https://doi.org/10.1093/mnras/stz1026 intvolume: ' 486' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stz1026 month: '09' oa: 1 oa_version: Published Version page: 2754-2765 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' related_material: link: - relation: erratum url: https://doi.org/10.1093/mnras/stz2435 scopus_import: '1' status: public title: 'Probing gas disc physics with LISA: simulations of an intermediate mass ratio inspiral in an accretion disc' type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 486 year: '2019' ... --- _id: '17567' abstract: - lang: eng text: The growing number of stellar-mass binary black hole mergers discovered by Advanced LIGO and Advanced Virgo are starting to constrain the binaries' origin and environment. However, we still lack sufficiently accurate modeling of binary formation channels to obtain strong constraints, or to identify sub-populations. One promising formation mechanism that could result in different black hole properties is binaries merging within the accretion disks of Active Galactic Nuclei (AGN). Here we show that the black holes' orbital alignment with the AGN disks preferentially selects heavier black holes. We carry out Monte Carlo simulations of orbital alignment with AGN disks, and find that AGNs harden the initial black hole mass function. Assuming an initial power law mass distribution M−βbh, we find that the power law index changes by Δβ∼1.3, resulting in a more top-heavy population of merging black holes. This change is independent of the mass of, and accretion rate onto, the supermassive black hole in the center of the AGN. Our simulations predict an AGN-assisted merger rate of ∼4Gpc−3yr−1. With its hardened mass spectra, the AGN channel could be responsible for 10−50% of gravitational-wave detections. article_number: '122' article_processing_charge: No article_type: original author: - first_name: Y. full_name: Yang, Y. last_name: Yang - first_name: I. full_name: Bartos, I. last_name: Bartos - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: B. full_name: Kocsis, B. last_name: Kocsis - first_name: Z. full_name: Márka, Z. last_name: Márka - first_name: N. C. full_name: Stone, N. C. last_name: Stone - first_name: S. full_name: Márka, S. last_name: Márka citation: ama: Yang Y, Bartos I, Haiman Z, et al. AGN disks harden the mass distribution of stellar-mass binary black hole mergers. The Astrophysical Journal. 2019;876(2). doi:10.3847/1538-4357/ab16e3 apa: Yang, Y., Bartos, I., Haiman, Z., Kocsis, B., Márka, Z., Stone, N. C., & Márka, S. (2019). AGN disks harden the mass distribution of stellar-mass binary black hole mergers. The Astrophysical Journal. American Astronomical Society. https://doi.org/10.3847/1538-4357/ab16e3 chicago: Yang, Y., I. Bartos, Zoltán Haiman, B. Kocsis, Z. Márka, N. C. Stone, and S. Márka. “AGN Disks Harden the Mass Distribution of Stellar-Mass Binary Black Hole Mergers.” The Astrophysical Journal. American Astronomical Society, 2019. https://doi.org/10.3847/1538-4357/ab16e3. ieee: Y. Yang et al., “AGN disks harden the mass distribution of stellar-mass binary black hole mergers,” The Astrophysical Journal, vol. 876, no. 2. American Astronomical Society, 2019. ista: Yang Y, Bartos I, Haiman Z, Kocsis B, Márka Z, Stone NC, Márka S. 2019. AGN disks harden the mass distribution of stellar-mass binary black hole mergers. The Astrophysical Journal. 876(2), 122. mla: Yang, Y., et al. “AGN Disks Harden the Mass Distribution of Stellar-Mass Binary Black Hole Mergers.” The Astrophysical Journal, vol. 876, no. 2, 122, American Astronomical Society, 2019, doi:10.3847/1538-4357/ab16e3. short: Y. Yang, I. Bartos, Z. Haiman, B. Kocsis, Z. Márka, N.C. Stone, S. Márka, The Astrophysical Journal 876 (2019). date_created: 2024-09-05T12:11:39Z date_published: 2019-05-10T00:00:00Z date_updated: 2024-09-18T13:26:34Z day: '10' doi: 10.3847/1538-4357/ab16e3 extern: '1' fulldoi: https://doi.org/10.3847/1538-4357/ab16e3 intvolume: ' 876' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3847/1538-4357/ab16e3 month: '05' oa: 1 oa_version: Published Version publication: The Astrophysical Journal publication_identifier: issn: - 0004-637X - 1538-4357 publication_status: published publisher: American Astronomical Society quality_controlled: '1' scopus_import: '1' status: public title: AGN disks harden the mass distribution of stellar-mass binary black hole mergers type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 876 year: '2019' ... --- _id: '17603' abstract: - lang: eng text: Weak gravitational lensing is one of the most promising cosmological probes of the late universe. Several large ongoing (DES, KiDS, HSC) and planned (LSST, Euclid, WFIRST) astronomical surveys attempt to collect even deeper and larger scale data on weak lensing. Due to gravitational collapse, the distribution of dark matter is non-Gaussian on small scales. However, observations are typically evaluated through the two-point correlation function of galaxy shear, which does not capture non-Gaussian features of the lensing maps. Previous studies attempted to extract non-Gaussian information from weak lensing observations through several higher order statistics such as the three-point correlation function, peak counts, or Minkowski functionals. Deep convolutional neural networks (CNN) emerged in the field of computer vision with tremendous success, and they offer a new and very promising framework to extract information from 2D or 3D astronomical data sets, confirmed by recent studies on weak lensing. We show that a CNN is able to yield significantly stricter constraints of (σ8, Ωm) cosmological parameters than the power spectrum using convergence maps generated by full N-body simulations and ray-tracing, at angular scales and shape noise levels relevant for future observations. In a scenario mimicking LSST or Euclid, the CNN yields 2.4–2.8 times smaller credible contours than the power spectrum, and 3.5–4.2 times smaller at noise levels corresponding to a deep space survey such as WFIRST. We also show that at shape noise levels achievable in future space surveys the CNN yields 1.4–2.1 times smaller contours than peak counts, a higher order statistic capable of extracting non-Gaussian information from weak lensing maps. article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Dezső full_name: Ribli, Dezső last_name: Ribli - first_name: Bálint Ármin full_name: Pataki, Bálint Ármin last_name: Pataki - first_name: José Manuel full_name: Zorrilla Matilla, José Manuel last_name: Zorrilla Matilla - first_name: Daniel full_name: Hsu, Daniel last_name: Hsu - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: István full_name: Csabai, István last_name: Csabai citation: ama: Ribli D, Pataki BÁ, Zorrilla Matilla JM, Hsu D, Haiman Z, Csabai I. Weak lensing cosmology with convolutional neural networks on noisy data. Monthly Notices of the Royal Astronomical Society. 2019;490(2):1843-1860. doi:10.1093/mnras/stz2610 apa: Ribli, D., Pataki, B. Á., Zorrilla Matilla, J. M., Hsu, D., Haiman, Z., & Csabai, I. (2019). Weak lensing cosmology with convolutional neural networks on noisy data. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stz2610 chicago: Ribli, Dezső, Bálint Ármin Pataki, José Manuel Zorrilla Matilla, Daniel Hsu, Zoltán Haiman, and István Csabai. “Weak Lensing Cosmology with Convolutional Neural Networks on Noisy Data.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2019. https://doi.org/10.1093/mnras/stz2610. ieee: D. Ribli, B. Á. Pataki, J. M. Zorrilla Matilla, D. Hsu, Z. Haiman, and I. Csabai, “Weak lensing cosmology with convolutional neural networks on noisy data,” Monthly Notices of the Royal Astronomical Society, vol. 490, no. 2. Oxford University Press, pp. 1843–1860, 2019. ista: Ribli D, Pataki BÁ, Zorrilla Matilla JM, Hsu D, Haiman Z, Csabai I. 2019. Weak lensing cosmology with convolutional neural networks on noisy data. Monthly Notices of the Royal Astronomical Society. 490(2), 1843–1860. mla: Ribli, Dezső, et al. “Weak Lensing Cosmology with Convolutional Neural Networks on Noisy Data.” Monthly Notices of the Royal Astronomical Society, vol. 490, no. 2, Oxford University Press, 2019, pp. 1843–60, doi:10.1093/mnras/stz2610. short: D. Ribli, B.Á. Pataki, J.M. Zorrilla Matilla, D. Hsu, Z. Haiman, I. Csabai, Monthly Notices of the Royal Astronomical Society 490 (2019) 1843–1860. date_created: 2024-09-05T13:11:16Z date_published: 2019-09-17T00:00:00Z date_updated: 2024-09-23T13:50:39Z day: '17' doi: 10.1093/mnras/stz2610 extern: '1' external_id: arxiv: - '1902.03663' fulldoi: https://doi.org/10.1093/mnras/stz2610 intvolume: ' 490' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1902.03663' month: '09' oa: 1 oa_version: Preprint page: 1843-1860 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: Weak lensing cosmology with convolutional neural networks on noisy data type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 490 year: '2019' ... --- OA_type: closed access _id: '17915' abstract: - lang: eng text: The construction of self-assembled iron phthalocyanine (FePc) systems on gold electrodes modified by self-assembled monolayers (SAMs) is becoming an interesting strategy for obtaining electrocatalytic molecular building blocks for the oxygen reduction reaction (ORR). In this work, we have measured the conductance of pyridiniums axial ligands at the single molecule level using the scanning tunneling microscope-based break-junction method (STM-Break Junction) to study the role of the axial ligand on the activity of the self-assembled FePc systems on a gold electrode surface. The electron-pulling effect of pyridinium axial ligands is known to increase the electrocatalytic activity of FePc for the oxygen reduction reaction (ORR). We have used these systems as a platform for carrying out a comparative study for understanding the real influence of the proximal axial ligands. Further, these ligands act as molecular wires between the gold electrode surface and the FePc molecule. The pyridinium molecules were synthesized following a series of structural variations using a basic molecular backbone. From conductance measurements obtained for each pyridinium molecule, it was possible to establish that electron transport through each pyridinium does not influence the activity of FePc for ORR in alkaline media. In addition, the DFT calculations shows that the axial ligand in FePc modifies its catalytic activity by decreasing the binding energy of O2 to the Fe site. article_number: '134996' article_processing_charge: No article_type: original author: - first_name: Cristian full_name: Gutiérrez-Ceron, Cristian last_name: Gutiérrez-Ceron - first_name: Rubén full_name: Oñate, Rubén last_name: Oñate - first_name: José H. full_name: Zagal, José H. last_name: Zagal - first_name: Ana full_name: Pizarro, Ana last_name: Pizarro - first_name: J. Francisco full_name: Silva, J. Francisco last_name: Silva - first_name: Carmen full_name: Castro-Castillo, Carmen last_name: Castro-Castillo - first_name: Marcos Caroli full_name: Rezende, Marcos Caroli last_name: Rezende - first_name: Marcos full_name: Flores, Marcos last_name: Flores - first_name: Diego full_name: Cortés-Arriagada, Diego last_name: Cortés-Arriagada - first_name: Alejandro full_name: Toro-Labbé, Alejandro last_name: Toro-Labbé - first_name: Luis M. full_name: Campos, Luis M. last_name: Campos - first_name: Latha full_name: Venkataraman, Latha id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf last_name: Venkataraman orcid: 0000-0002-6957-6089 - first_name: Ingrid full_name: Ponce, Ingrid last_name: Ponce citation: ama: 'Gutiérrez-Ceron C, Oñate R, Zagal JH, et al. Molecular conductance versus inductive effects of axial ligands on the electrocatalytic activity of self-assembled iron phthalocyanines: The oxygen reduction reaction. Electrochimica Acta. 2019;327. doi:10.1016/j.electacta.2019.134996' apa: 'Gutiérrez-Ceron, C., Oñate, R., Zagal, J. H., Pizarro, A., Silva, J. F., Castro-Castillo, C., … Ponce, I. (2019). Molecular conductance versus inductive effects of axial ligands on the electrocatalytic activity of self-assembled iron phthalocyanines: The oxygen reduction reaction. Electrochimica Acta. Elsevier. https://doi.org/10.1016/j.electacta.2019.134996' chicago: 'Gutiérrez-Ceron, Cristian, Rubén Oñate, José H. Zagal, Ana Pizarro, J. Francisco Silva, Carmen Castro-Castillo, Marcos Caroli Rezende, et al. “Molecular Conductance versus Inductive Effects of Axial Ligands on the Electrocatalytic Activity of Self-Assembled Iron Phthalocyanines: The Oxygen Reduction Reaction.” Electrochimica Acta. Elsevier, 2019. https://doi.org/10.1016/j.electacta.2019.134996.' ieee: 'C. Gutiérrez-Ceron et al., “Molecular conductance versus inductive effects of axial ligands on the electrocatalytic activity of self-assembled iron phthalocyanines: The oxygen reduction reaction,” Electrochimica Acta, vol. 327. Elsevier, 2019.' ista: 'Gutiérrez-Ceron C, Oñate R, Zagal JH, Pizarro A, Silva JF, Castro-Castillo C, Rezende MC, Flores M, Cortés-Arriagada D, Toro-Labbé A, Campos LM, Venkataraman L, Ponce I. 2019. Molecular conductance versus inductive effects of axial ligands on the electrocatalytic activity of self-assembled iron phthalocyanines: The oxygen reduction reaction. Electrochimica Acta. 327, 134996.' mla: 'Gutiérrez-Ceron, Cristian, et al. “Molecular Conductance versus Inductive Effects of Axial Ligands on the Electrocatalytic Activity of Self-Assembled Iron Phthalocyanines: The Oxygen Reduction Reaction.” Electrochimica Acta, vol. 327, 134996, Elsevier, 2019, doi:10.1016/j.electacta.2019.134996.' short: C. Gutiérrez-Ceron, R. Oñate, J.H. Zagal, A. Pizarro, J.F. Silva, C. Castro-Castillo, M.C. Rezende, M. Flores, D. Cortés-Arriagada, A. Toro-Labbé, L.M. Campos, L. Venkataraman, I. Ponce, Electrochimica Acta 327 (2019). date_created: 2024-09-09T07:39:29Z date_published: 2019-12-10T00:00:00Z date_updated: 2024-12-10T12:30:09Z day: '10' doi: 10.1016/j.electacta.2019.134996 extern: '1' fulldoi: https://doi.org/10.1016/j.electacta.2019.134996 intvolume: ' 327' language: - iso: eng month: '12' oa_version: None publication: Electrochimica Acta publication_identifier: issn: - 0013-4686 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: 'Molecular conductance versus inductive effects of axial ligands on the electrocatalytic activity of self-assembled iron phthalocyanines: The oxygen reduction reaction' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 327 year: '2019' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '17916' abstract: - lang: eng text: Electric fields have been proposed as having a distinct ability to catalyze chemical reactions through the stabilization of polar or ionic intermediate transition states. Although field-assisted catalysis is being researched, the ability to catalyze reactions in solution using electric fields remains elusive and the understanding of mechanisms of such catalysis is sparse. Here we show that an electric field can catalyze the cis-to-trans isomerization of [3]cumulene derivatives in solution, in a scanning tunneling microscope. We further show that the external electric field can alter the thermodynamics inhibiting the trans-to-cis reverse reaction, endowing the selectivity toward trans isomer. Using density functional theory-based calculations, we find that the applied electric field promotes a zwitterionic resonance form, which ensures a lower energy transition state for the isomerization reaction. The field also stabilizes the trans form, relative to the cis, dictating the cis/trans thermodynamics, driving the equilibrium product exclusively toward the trans. article_number: '4482' article_processing_charge: Yes article_type: original author: - first_name: Yaping full_name: Zang, Yaping last_name: Zang - first_name: Qi full_name: Zou, Qi last_name: Zou - first_name: Tianren full_name: Fu, Tianren last_name: Fu - first_name: Fay full_name: Ng, Fay last_name: Ng - first_name: Brandon full_name: Fowler, Brandon last_name: Fowler - first_name: Jingjing full_name: Yang, Jingjing last_name: Yang - first_name: Hexing full_name: Li, Hexing last_name: Li - first_name: Michael L. full_name: Steigerwald, Michael L. last_name: Steigerwald - first_name: Colin full_name: Nuckolls, Colin last_name: Nuckolls - first_name: Latha full_name: Venkataraman, Latha id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf last_name: Venkataraman orcid: 0000-0002-6957-6089 citation: ama: Zang Y, Zou Q, Fu T, et al. Directing isomerization reactions of cumulenes with electric fields. Nature Communications. 2019;10. doi:10.1038/s41467-019-12487-w apa: Zang, Y., Zou, Q., Fu, T., Ng, F., Fowler, B., Yang, J., … Venkataraman, L. (2019). Directing isomerization reactions of cumulenes with electric fields. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-019-12487-w chicago: Zang, Yaping, Qi Zou, Tianren Fu, Fay Ng, Brandon Fowler, Jingjing Yang, Hexing Li, Michael L. Steigerwald, Colin Nuckolls, and Latha Venkataraman. “Directing Isomerization Reactions of Cumulenes with Electric Fields.” Nature Communications. Springer Nature, 2019. https://doi.org/10.1038/s41467-019-12487-w. ieee: Y. Zang et al., “Directing isomerization reactions of cumulenes with electric fields,” Nature Communications, vol. 10. Springer Nature, 2019. ista: Zang Y, Zou Q, Fu T, Ng F, Fowler B, Yang J, Li H, Steigerwald ML, Nuckolls C, Venkataraman L. 2019. Directing isomerization reactions of cumulenes with electric fields. Nature Communications. 10, 4482. mla: Zang, Yaping, et al. “Directing Isomerization Reactions of Cumulenes with Electric Fields.” Nature Communications, vol. 10, 4482, Springer Nature, 2019, doi:10.1038/s41467-019-12487-w. short: Y. Zang, Q. Zou, T. Fu, F. Ng, B. Fowler, J. Yang, H. Li, M.L. Steigerwald, C. Nuckolls, L. Venkataraman, Nature Communications 10 (2019). date_created: 2024-09-09T07:40:44Z date_published: 2019-10-02T00:00:00Z date_updated: 2024-12-10T12:32:33Z day: '02' doi: 10.1038/s41467-019-12487-w extern: '1' external_id: pmid: - '31578333' fulldoi: https://doi.org/10.1038/s41467-019-12487-w intvolume: ' 10' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1038/s41467-019-12487-w month: '10' oa: 1 oa_version: Published Version pmid: 1 publication: Nature Communications publication_identifier: issn: - 2041-1723 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Directing isomerization reactions of cumulenes with electric fields type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 10 year: '2019' ... --- OA_type: closed access _id: '17917' abstract: - lang: eng text: A single-molecule method has been developed based on the scanning tunneling microscope (STM) to selectively couple a series of aniline derivatives and create azobenzenes. The Au-catalyzed oxidative coupling is driven by the local electrochemical potential at the nanostructured Au STM tip. The products are detected in situ by measuring the conductance and molecular junction elongation and compared with analogous measurements of the expected azobenzene derivatives prepared ex situ. This single-molecule approach is robust, and it can quickly and reproducibly create reactions for a variety of anilines. We further demonstrate the selective synthesis of geometric isomers and the assembly of complex molecular architectures by sequential coupling of complementary anilines, demonstrating unprecedented control over bond formation at the nanoscale. article_processing_charge: No article_type: original author: - first_name: Yaping full_name: Zang, Yaping last_name: Zang - first_name: Ilana full_name: Stone, Ilana last_name: Stone - first_name: Michael S. full_name: Inkpen, Michael S. last_name: Inkpen - first_name: Fay full_name: Ng, Fay last_name: Ng - first_name: Tristan H. full_name: Lambert, Tristan H. last_name: Lambert - first_name: Colin full_name: Nuckolls, Colin last_name: Nuckolls - first_name: Michael L. full_name: Steigerwald, Michael L. last_name: Steigerwald - first_name: Xavier full_name: Roy, Xavier last_name: Roy - first_name: Latha full_name: Venkataraman, Latha id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf last_name: Venkataraman orcid: 0000-0002-6957-6089 citation: ama: Zang Y, Stone I, Inkpen MS, et al. In situ coupling of single molecules driven by gold‐catalyzed electrooxidation. Angewandte Chemie International Edition. 2019;58(45):16008-16012. doi:10.1002/anie.201906215 apa: Zang, Y., Stone, I., Inkpen, M. S., Ng, F., Lambert, T. H., Nuckolls, C., … Venkataraman, L. (2019). In situ coupling of single molecules driven by gold‐catalyzed electrooxidation. Angewandte Chemie International Edition. Wiley. https://doi.org/10.1002/anie.201906215 chicago: Zang, Yaping, Ilana Stone, Michael S. Inkpen, Fay Ng, Tristan H. Lambert, Colin Nuckolls, Michael L. Steigerwald, Xavier Roy, and Latha Venkataraman. “In Situ Coupling of Single Molecules Driven by Gold‐catalyzed Electrooxidation.” Angewandte Chemie International Edition. Wiley, 2019. https://doi.org/10.1002/anie.201906215. ieee: Y. Zang et al., “In situ coupling of single molecules driven by gold‐catalyzed electrooxidation,” Angewandte Chemie International Edition, vol. 58, no. 45. Wiley, pp. 16008–16012, 2019. ista: Zang Y, Stone I, Inkpen MS, Ng F, Lambert TH, Nuckolls C, Steigerwald ML, Roy X, Venkataraman L. 2019. In situ coupling of single molecules driven by gold‐catalyzed electrooxidation. Angewandte Chemie International Edition. 58(45), 16008–16012. mla: Zang, Yaping, et al. “In Situ Coupling of Single Molecules Driven by Gold‐catalyzed Electrooxidation.” Angewandte Chemie International Edition, vol. 58, no. 45, Wiley, 2019, pp. 16008–12, doi:10.1002/anie.201906215. short: Y. Zang, I. Stone, M.S. Inkpen, F. Ng, T.H. Lambert, C. Nuckolls, M.L. Steigerwald, X. Roy, L. Venkataraman, Angewandte Chemie International Edition 58 (2019) 16008–16012. date_created: 2024-09-09T07:41:47Z date_published: 2019-11-04T00:00:00Z date_updated: 2024-12-10T12:36:30Z day: '04' doi: 10.1002/anie.201906215 extern: '1' external_id: pmid: - '31226235' fulldoi: https://doi.org/10.1002/anie.201906215 intvolume: ' 58' issue: '45' language: - iso: eng month: '11' oa_version: None page: 16008-16012 pmid: 1 publication: Angewandte Chemie International Edition publication_identifier: eissn: - 1521-3773 issn: - 1433-7851 publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: In situ coupling of single molecules driven by gold‐catalyzed electrooxidation type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 58 year: '2019' ... --- OA_type: closed access _id: '17918' abstract: - lang: eng text: The single-molecule conductance of silanes is suppressed due to destructive quantum interference in conformations with cisoid dihedral angles along the molecular backbone. Yet, despite the structural similarity, σ-interference effects have not been observed in alkanes. Here we report that the methyl substituents used in silanes are a prerequisite for σ-interference in these systems. Through density functional theory calculations, we find that the destructive interference is not evident to the same extent in nonmethylated silanes. We find the same is true in alkanes as the transmission is significantly suppressed in permethylated cyclic and bicyclic alkanes. Using scanning tunneling microscope break-junction method we determine the single-molecule conductance of functionalized cyclohexane and bicyclo[2.2.2]octane that are found to be higher than that of equivalent permethylated silanes. Rather than the difference between carbon and silicon atoms in the molecular backbones, our calculations reveal that it is primarily the difference between hydrogen and methyl substituents that result in the different electron transport properties of nonmethylated alkanes and permethylated silanes. Chemical substituents play an important role in determining the single-molecule conductance of saturated molecules, and this must be considered when we improve and expand the chemical design of insulating organic molecules. article_processing_charge: No article_type: original author: - first_name: Marc H. full_name: Garner, Marc H. last_name: Garner - first_name: Haixing full_name: Li, Haixing last_name: Li - first_name: Madhav full_name: Neupane, Madhav last_name: Neupane - first_name: Qi full_name: Zou, Qi last_name: Zou - first_name: Taifeng full_name: Liu, Taifeng last_name: Liu - first_name: Timothy A. full_name: Su, Timothy A. last_name: Su - first_name: Zhichun full_name: Shangguan, Zhichun last_name: Shangguan - first_name: Daniel W. full_name: Paley, Daniel W. last_name: Paley - first_name: Fay full_name: Ng, Fay last_name: Ng - first_name: Shengxiong full_name: Xiao, Shengxiong last_name: Xiao - first_name: Colin full_name: Nuckolls, Colin last_name: Nuckolls - first_name: Latha full_name: Venkataraman, Latha id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf last_name: Venkataraman orcid: 0000-0002-6957-6089 - first_name: Gemma C. full_name: Solomon, Gemma C. last_name: Solomon citation: ama: Garner MH, Li H, Neupane M, et al. Permethylation introduces destructive quantum interference in saturated silanes. Journal of the American Chemical Society. 2019;141(39):15471-15476. doi:10.1021/jacs.9b06965 apa: Garner, M. H., Li, H., Neupane, M., Zou, Q., Liu, T., Su, T. A., … Solomon, G. C. (2019). Permethylation introduces destructive quantum interference in saturated silanes. Journal of the American Chemical Society. American Chemical Society. https://doi.org/10.1021/jacs.9b06965 chicago: Garner, Marc H., Haixing Li, Madhav Neupane, Qi Zou, Taifeng Liu, Timothy A. Su, Zhichun Shangguan, et al. “Permethylation Introduces Destructive Quantum Interference in Saturated Silanes.” Journal of the American Chemical Society. American Chemical Society, 2019. https://doi.org/10.1021/jacs.9b06965. ieee: M. H. Garner et al., “Permethylation introduces destructive quantum interference in saturated silanes,” Journal of the American Chemical Society, vol. 141, no. 39. American Chemical Society, pp. 15471–15476, 2019. ista: Garner MH, Li H, Neupane M, Zou Q, Liu T, Su TA, Shangguan Z, Paley DW, Ng F, Xiao S, Nuckolls C, Venkataraman L, Solomon GC. 2019. Permethylation introduces destructive quantum interference in saturated silanes. Journal of the American Chemical Society. 141(39), 15471–15476. mla: Garner, Marc H., et al. “Permethylation Introduces Destructive Quantum Interference in Saturated Silanes.” Journal of the American Chemical Society, vol. 141, no. 39, American Chemical Society, 2019, pp. 15471–76, doi:10.1021/jacs.9b06965. short: M.H. Garner, H. Li, M. Neupane, Q. Zou, T. Liu, T.A. Su, Z. Shangguan, D.W. Paley, F. Ng, S. Xiao, C. Nuckolls, L. Venkataraman, G.C. Solomon, Journal of the American Chemical Society 141 (2019) 15471–15476. date_created: 2024-09-09T07:42:26Z date_published: 2019-09-10T00:00:00Z date_updated: 2024-12-10T12:39:27Z day: '10' doi: 10.1021/jacs.9b06965 extern: '1' external_id: pmid: - '31500410' fulldoi: https://doi.org/10.1021/jacs.9b06965 intvolume: ' 141' issue: '39' language: - iso: eng month: '09' oa_version: None page: 15471-15476 pmid: 1 publication: Journal of the American Chemical Society publication_identifier: eissn: - 1520-5126 issn: - 0002-7863 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Permethylation introduces destructive quantum interference in saturated silanes type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 141 year: '2019' ... --- OA_type: closed access _id: '17919' abstract: - lang: eng text: The adsorption geometry and the electronic structure of a Blatter radical derivative on a gold surface were investigated by a combination of high‐resolution noncontact atomic force microscopy and scanning tunneling microscopy. While the hybridization with the substrate hinders direct access to the molecular states, we show that the unpaired‐electron orbital can be probed with Ångström resolution by mapping the spatial distribution of the Kondo resonance. The Blatter derivative features a peculiar delocalization of the unpaired‐electron orbital over some but not all moieties of the molecule, such that the Kondo signature can be related to the spatial fingerprint of the orbital. We observe a direct correspondence between these two quantities, including a pronounced nodal plane structure. Finally, we demonstrate that the spatial signature of the Kondo resonance also persists upon noncovalent dimerization of molecules. article_processing_charge: No article_type: original author: - first_name: Laerte L. full_name: Patera, Laerte L. last_name: Patera - first_name: Sophia full_name: Sokolov, Sophia last_name: Sokolov - first_name: Jonathan Z. full_name: Low, Jonathan Z. last_name: Low - first_name: Luis M. full_name: Campos, Luis M. last_name: Campos - first_name: Latha full_name: Venkataraman, Latha id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf last_name: Venkataraman orcid: 0000-0002-6957-6089 - first_name: Jascha full_name: Repp, Jascha last_name: Repp citation: ama: Patera LL, Sokolov S, Low JZ, Campos LM, Venkataraman L, Repp J. Resolving the unpaired‐electron orbital distribution in a stable organic radical by Kondo resonance mapping. Angewandte Chemie International Edition. 2019;58(32):11063-11067. doi:10.1002/anie.201904851 apa: Patera, L. L., Sokolov, S., Low, J. Z., Campos, L. M., Venkataraman, L., & Repp, J. (2019). Resolving the unpaired‐electron orbital distribution in a stable organic radical by Kondo resonance mapping. Angewandte Chemie International Edition. Wiley. https://doi.org/10.1002/anie.201904851 chicago: Patera, Laerte L., Sophia Sokolov, Jonathan Z. Low, Luis M. Campos, Latha Venkataraman, and Jascha Repp. “Resolving the Unpaired‐electron Orbital Distribution in a Stable Organic Radical by Kondo Resonance Mapping.” Angewandte Chemie International Edition. Wiley, 2019. https://doi.org/10.1002/anie.201904851. ieee: L. L. Patera, S. Sokolov, J. Z. Low, L. M. Campos, L. Venkataraman, and J. Repp, “Resolving the unpaired‐electron orbital distribution in a stable organic radical by Kondo resonance mapping,” Angewandte Chemie International Edition, vol. 58, no. 32. Wiley, pp. 11063–11067, 2019. ista: Patera LL, Sokolov S, Low JZ, Campos LM, Venkataraman L, Repp J. 2019. Resolving the unpaired‐electron orbital distribution in a stable organic radical by Kondo resonance mapping. Angewandte Chemie International Edition. 58(32), 11063–11067. mla: Patera, Laerte L., et al. “Resolving the Unpaired‐electron Orbital Distribution in a Stable Organic Radical by Kondo Resonance Mapping.” Angewandte Chemie International Edition, vol. 58, no. 32, Wiley, 2019, pp. 11063–67, doi:10.1002/anie.201904851. short: L.L. Patera, S. Sokolov, J.Z. Low, L.M. Campos, L. Venkataraman, J. Repp, Angewandte Chemie International Edition 58 (2019) 11063–11067. date_created: 2024-09-09T07:43:21Z date_published: 2019-08-05T00:00:00Z date_updated: 2024-12-10T12:41:49Z day: '05' doi: 10.1002/anie.201904851 extern: '1' external_id: pmid: - '31115954' fulldoi: https://doi.org/10.1002/anie.201904851 intvolume: ' 58' issue: '32' language: - iso: eng month: '08' oa_version: None page: 11063-11067 pmid: 1 publication: Angewandte Chemie International Edition publication_identifier: eissn: - 1521-3773 issn: - 1433-7851 publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: Resolving the unpaired‐electron orbital distribution in a stable organic radical by Kondo resonance mapping type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 58 year: '2019' ... --- OA_type: closed access _id: '17920' abstract: - lang: eng text: Stable organic radicals have potential applications for building organic spintronic devices. To fulfill this potential, the interface between organic radicals and metal electrodes must be well characterized. Here, through a combined effort that includes synthesis, scanning tunneling microscopy, X-ray spectroscopy, and single-molecule conductance measurements, we comprehensively probe the electronic interaction between gold metal electrodes and a benchtop stable radical—the Blatter radical. We find that despite its open-shell character and having a half-filled orbital close to the Fermi level, the radical is stable on a gold substrate under ultrahigh vacuum. We observe a Kondo resonance arising from the radical and spectroscopic signatures of its half-filled orbitals. By contrast, in solution-based single-molecule conductance measurements, the radical character is lost through oxidation with charge transfer occurring from the molecule to metal. Our experiments show that the stability of radical states can be very sensitive to the environment around the molecule. article_processing_charge: No article_type: original author: - first_name: Jonathan Z. full_name: Low, Jonathan Z. last_name: Low - first_name: Gregor full_name: Kladnik, Gregor last_name: Kladnik - first_name: Laerte L. full_name: Patera, Laerte L. last_name: Patera - first_name: Sophia full_name: Sokolov, Sophia last_name: Sokolov - first_name: Giacomo full_name: Lovat, Giacomo last_name: Lovat - first_name: Elango full_name: Kumarasamy, Elango last_name: Kumarasamy - first_name: Jascha full_name: Repp, Jascha last_name: Repp - first_name: Luis M. full_name: Campos, Luis M. last_name: Campos - first_name: Dean full_name: Cvetko, Dean last_name: Cvetko - first_name: Alberto full_name: Morgante, Alberto last_name: Morgante - first_name: Latha full_name: Venkataraman, Latha id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf last_name: Venkataraman orcid: 0000-0002-6957-6089 citation: ama: Low JZ, Kladnik G, Patera LL, et al. The environment-dependent behavior of the Blatter radical at the metal–molecule interface. Nano Letters. 2019;19(4):2543-2548. doi:10.1021/acs.nanolett.9b00275 apa: Low, J. Z., Kladnik, G., Patera, L. L., Sokolov, S., Lovat, G., Kumarasamy, E., … Venkataraman, L. (2019). The environment-dependent behavior of the Blatter radical at the metal–molecule interface. Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.9b00275 chicago: Low, Jonathan Z., Gregor Kladnik, Laerte L. Patera, Sophia Sokolov, Giacomo Lovat, Elango Kumarasamy, Jascha Repp, et al. “The Environment-Dependent Behavior of the Blatter Radical at the Metal–Molecule Interface.” Nano Letters. American Chemical Society, 2019. https://doi.org/10.1021/acs.nanolett.9b00275. ieee: J. Z. Low et al., “The environment-dependent behavior of the Blatter radical at the metal–molecule interface,” Nano Letters, vol. 19, no. 4. American Chemical Society, pp. 2543–2548, 2019. ista: Low JZ, Kladnik G, Patera LL, Sokolov S, Lovat G, Kumarasamy E, Repp J, Campos LM, Cvetko D, Morgante A, Venkataraman L. 2019. The environment-dependent behavior of the Blatter radical at the metal–molecule interface. Nano Letters. 19(4), 2543–2548. mla: Low, Jonathan Z., et al. “The Environment-Dependent Behavior of the Blatter Radical at the Metal–Molecule Interface.” Nano Letters, vol. 19, no. 4, American Chemical Society, 2019, pp. 2543–48, doi:10.1021/acs.nanolett.9b00275. short: J.Z. Low, G. Kladnik, L.L. Patera, S. Sokolov, G. Lovat, E. Kumarasamy, J. Repp, L.M. Campos, D. Cvetko, A. Morgante, L. Venkataraman, Nano Letters 19 (2019) 2543–2548. date_created: 2024-09-09T07:44:44Z date_published: 2019-03-18T00:00:00Z date_updated: 2024-12-11T07:41:32Z day: '18' doi: 10.1021/acs.nanolett.9b00275 extern: '1' external_id: pmid: - '30884240' fulldoi: https://doi.org/10.1021/acs.nanolett.9b00275 intvolume: ' 19' issue: '4' language: - iso: eng month: '03' oa_version: None page: 2543-2548 pmid: 1 publication: Nano Letters publication_identifier: eissn: - 1530-6992 issn: - 1530-6984 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: The environment-dependent behavior of the Blatter radical at the metal–molecule interface type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 19 year: '2019' ... --- OA_type: closed access _id: '17921' abstract: - lang: eng text: The promise of the field of single-molecule electronics is to reveal a new class of quantum devices that leverages the strong electronic interactions inherent to subnanometer scale systems. Here, we form Au–molecule–Au junctions using a custom scanning tunneling microscope and explore charge transport through current–voltage measurements. We focus on the resonant tunneling regime of two molecules, one that is primarily an electron conductor and one that conducts primarily holes. We find that in the high bias regime, junctions that do not rupture demonstrate reproducible and pronounced negative differential resistance (NDR)-like features followed by hysteresis with peak-to-valley ratios exceeding 100 in some cases. Furthermore, we show that both junction rupture and NDR are induced by charging of the molecular orbital dominating transport and find that the charging is reversible at lower bias and with time with kinetic time scales on the order of hundreds of milliseconds. We argue that these results cannot be explained by existing models of charge transport and likely require theoretical advances describing the transition from coherent to sequential tunneling. Our work also suggests new rules for operating single-molecule devices at high bias to obtain highly nonlinear behavior. article_processing_charge: No article_type: original author: - first_name: E-Dean full_name: Fung, E-Dean last_name: Fung - first_name: David full_name: Gelbwaser, David last_name: Gelbwaser - first_name: Jeffrey full_name: Taylor, Jeffrey last_name: Taylor - first_name: Jonathan full_name: Low, Jonathan last_name: Low - first_name: Jianlong full_name: Xia, Jianlong last_name: Xia - first_name: Iryna full_name: Davydenko, Iryna last_name: Davydenko - first_name: Luis M. full_name: Campos, Luis M. last_name: Campos - first_name: Seth full_name: Marder, Seth last_name: Marder - first_name: Uri full_name: Peskin, Uri last_name: Peskin - first_name: Latha full_name: Venkataraman, Latha id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf last_name: Venkataraman orcid: 0000-0002-6957-6089 citation: ama: 'Fung E-D, Gelbwaser D, Taylor J, et al. Breaking down resonance: Nonlinear transport and the breakdown of coherent tunneling models in single molecule junctions. Nano Letters. 2019;19(4):2555-2561. doi:10.1021/acs.nanolett.9b00316' apa: 'Fung, E.-D., Gelbwaser, D., Taylor, J., Low, J., Xia, J., Davydenko, I., … Venkataraman, L. (2019). Breaking down resonance: Nonlinear transport and the breakdown of coherent tunneling models in single molecule junctions. Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.9b00316' chicago: 'Fung, E-Dean, David Gelbwaser, Jeffrey Taylor, Jonathan Low, Jianlong Xia, Iryna Davydenko, Luis M. Campos, Seth Marder, Uri Peskin, and Latha Venkataraman. “Breaking down Resonance: Nonlinear Transport and the Breakdown of Coherent Tunneling Models in Single Molecule Junctions.” Nano Letters. American Chemical Society, 2019. https://doi.org/10.1021/acs.nanolett.9b00316.' ieee: 'E.-D. Fung et al., “Breaking down resonance: Nonlinear transport and the breakdown of coherent tunneling models in single molecule junctions,” Nano Letters, vol. 19, no. 4. American Chemical Society, pp. 2555–2561, 2019.' ista: 'Fung E-D, Gelbwaser D, Taylor J, Low J, Xia J, Davydenko I, Campos LM, Marder S, Peskin U, Venkataraman L. 2019. Breaking down resonance: Nonlinear transport and the breakdown of coherent tunneling models in single molecule junctions. Nano Letters. 19(4), 2555–2561.' mla: 'Fung, E. Dean, et al. “Breaking down Resonance: Nonlinear Transport and the Breakdown of Coherent Tunneling Models in Single Molecule Junctions.” Nano Letters, vol. 19, no. 4, American Chemical Society, 2019, pp. 2555–61, doi:10.1021/acs.nanolett.9b00316.' short: E.-D. Fung, D. Gelbwaser, J. Taylor, J. Low, J. Xia, I. Davydenko, L.M. Campos, S. Marder, U. Peskin, L. Venkataraman, Nano Letters 19 (2019) 2555–2561. date_created: 2024-09-09T07:46:01Z date_published: 2019-03-01T00:00:00Z date_updated: 2024-12-11T07:48:13Z day: '01' doi: 10.1021/acs.nanolett.9b00316 extern: '1' external_id: pmid: - '30821465' fulldoi: https://doi.org/10.1021/acs.nanolett.9b00316 intvolume: ' 19' issue: '4' language: - iso: eng month: '03' oa_version: None page: 2555-2561 pmid: 1 publication: Nano Letters publication_identifier: eissn: - 1530-6992 issn: - 1530-6984 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: 'Breaking down resonance: Nonlinear transport and the breakdown of coherent tunneling models in single molecule junctions' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 19 year: '2019' ...