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The Colloquia are held in a "hybrid mode": both in the lecture hall and online or online only (speaker's decision).
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Wednesday Colloquium 24.09.2025

Grzegorz Madejski

First results from the Rubin Observatory
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SPOTKANIA z ASTRONOMIĄ
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» Announcements

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» Our recent papers on arXiv

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arXiv:2509.08054[pdf, other]
GW250114: testing Hawking's area law and the Kerr nature of black holes
Authors: The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration, A. G. Abac, I. Abouelfettouh, F. Acernese, K. Ackley, C. Adamcewicz, S. Adhicary, D. Adhikari, N. Adhikari, R. X. Adhikari, V. K. Adkins, S. Afroz, A. Agapito, D. Agarwal, M. Agathos, N. Aggarwal, S. Aggarwal, O. D. Aguiar, I. -L. Ahrend, L. Aiello, A. Ain, P. Ajith, T. Akutsu, S. Albanesi, W. Ali, S. Al-Kershi, C. Alléné, A. Allocca, S. Al-Shammari, P. A. Altin, S. Alvarez-Lopez, W. Amar, O. Amarasinghe, A. Amato, F. Amicucci, C. Amra, A. Ananyeva, S. B. Anderson, W. G. Anderson, M. Andia, M. Ando, M. Andrés-Carcasona, T. Andrić, J. Anglin, S. Ansoldi, J. M. Antelis, S. Antier, M. Aoumi, E. Z. Appavuravther, et al. (and 1738 authors not shown)
Comments:6 pages, 5 figures (plus supplement)
arXiv:2509.07352[pdf, other]
Directed searches for gravitational waves from ultralight vector boson clouds around merger remnant and galactic black holes during the first part of the fourth LIGO-Virgo-KAGRA observing run
Authors: The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration, A. G. Abac, I. Abouelfettouh, F. Acernese, K. Ackley, C. Adamcewicz, S. Adhicary, D. Adhikari, N. Adhikari, R. X. Adhikari, V. K. Adkins, S. Afroz, A. Agapito, D. Agarwal, M. Agathos, N. Aggarwal, S. Aggarwal, O. D. Aguiar, I. -L. Ahrend, L. Aiello, A. Ain, P. Ajith, T. Akutsu, S. Albanesi, W. Ali, S. Al-Kershi, C. Alléné, A. Allocca, S. Al-Shammari, P. A. Altin, S. Alvarez-Lopez, W. Amar, O. Amarasinghe, A. Amato, F. Amicucci, C. Amra, A. Ananyeva, S. B. Anderson, W. G. Anderson, M. Andia, M. Ando, M. Andrés-Carcasona, T. Andrić, J. Anglin, S. Ansoldi, J. M. Antelis, S. Antier, M. Aoumi, E. Z. Appavuravther, et al. (and 1722 authors not shown)
Comments:33 pages, 4 figures
arXiv:2509.09288[pdf, other]
GRMHD Study of Accretion onto time-like Naked Singularities
Authors:Akhil Uniyal, Indu K. Dihingia, Yosuke Mizuno, Włodek Kluźniak
Comments:Accepted in ApJ
arXiv:2509.11726[pdf, other]
Self-lensing binaries as probes of Supernova physics
Authors:Grzegorz Wiktorowicz, Matthew Middleton, Aleksandra Olejak, Cordelia Dashwood-Brown, Madeleine-Mai Ward, Adam Ingram
Comments:19 pages, 14 figures, submitted to MNRAS
arXiv:2509.11495[pdf, other]
Three binary-source binary-lens microlensing events from the 2024 microlensing campaign
Authors:Cheongho Han, Chung-Uk Lee, Andrzej Udalski, Michael D. Albrow, Sun-Ju Chung, Andrew Gould, Youn Kil Jung, Kyu-Ha Hwang, Yoon-Hyun Ryu, Yossi Shvartzvald, In-Gu Shin, Jennifer C. Yee, Weicheng Zang, Hongjing Yang, Doeon Kim, Dong-Jin Kim, Byeong-Gon Park, Przemek Mróz, Michał K. Szymański, Jan Skowron, Radosław Poleski, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof A. Rybicki, Patryk Iwanek, Krzysztof Ulaczyk, Marcin Wrona, Mariusz Gromadzki, Mateusz J. Mróz
Comments:13 pages, 9 figures, 5 tables
arXiv:2509.08099[pdf, other]
Black Hole Spectroscopy and Tests of General Relativity with GW250114
Authors: The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration
Comments:Associated data release at https://doi.org/10.5281/zenodo.17018009
arXiv:2509.07348[pdf, other]
GW230814: investigation of a loud gravitational-wave signal observed with a single detector
Authors: The LIGO Scientific Collaboration, The Virgo Collaboration, The Kagra Collaboration, Others
Comments:As part of the Astrophysical Journal Letters Focus Issue on the Gravitational Wave Transient Catalog
arXiv:2509.04297[pdf, other]
The changing transit shape of TOI-3884 b
Authors:Hritam Chakraborty, Jose M. Almenara, Monika Lendl, David Ehrenreich, François Bouchy, Xavier Bonfils, Radmila Dancikova, Adrien Deline, Saniya Khan, Henryka Netzel, Muskan Shinde, Aurélien Verdier
Comments:Accepted for publication in A&A on September 04th, 2025