黑洞双星 LMC X-1 的首次 X 射线偏振观测
高能天体物理现象
2023-10-10 v3
摘要
我们报道了由成像 X 射线偏振探测器（IXPE）于 2022 年 10 月对处于高/软态的大质量 X 射线双星 LMC X-1 进行的 X 射线偏振观测。测得的偏振低于 1.1% 的最小可探测偏振（在 99% 置信水平）。同时，该源被 NICER、NuSTAR 和 SRG/ART-XC 仪器观测，从而能够将光谱分解为主导的热成分与一种康普顿化成分。该源在 2-8 keV 的低偏振未能对黑洞自旋与吸积盘倾角给出强约束。然而，若假定轨道倾角约为 36 度，则该上限与几何薄且光学厚吸积盘纯热辐射的理论预言一致。假设康普顿化成分的偏振度为 0、4 或 10%，且取向垂直于吸积盘辐射的偏振方向（后者又假定垂直于光学波段探测到的大尺度电离锥方向），则分别得到吸积盘辐射偏振的上限为 1.0、0.9 或 0.9%（在 99% 置信水平）。
引用
@article{arxiv.2303.12034,
title = {The first X-ray polarimetric observation of the black hole binary LMC X-1},
author = {Jakub Podgorny and Lorenzo Marra and Fabio Muleri and Nicole Rodriguez Cavero and Ajay Ratheesh and Michal Dovciak and Romana Mikusincova and Maimouna Brigitte and James F. Steiner and Alexandra Veledina and Stefano Bianchi and Henric Krawczynski and Jiri Svoboda and Philip Kaaret and Giorgio Matt and Javier A. Garcia and Pierre-Olivier Petrucci and Alexander A. Lutovinov and Andrey N. Semena and Alessandro Di Marco and Michela Negro and Martin C. Weisskopf and Adam Ingram and Juri Poutanen and Banfsheh Beheshtipour and Sohee Chun and Kun Hu and Tsunefumi Mizuno and Zhang Sixuan and Francesco Tombesi and Silvia Zane and Ivan Agudo and Lucio A. Antonelli and Matteo Bachetti and Luca Baldini and Wayne H. Baumgartner and Ronaldo Bellazzini and Stephen D. Bongiorno and Raffaella Bonino and Alessandro Brez and Niccolo Bucciantini and Fiamma Capitanio and Simone Castellano and Elisabetta Cavazzuti and Chien-Ting Chen and Stefano Ciprini and Enrico Costa and Alessandra De Rosa and Ettore Del Monte and Laura Di Gesu and Niccolo Di Lalla and Immacolata Donnarumma and Victor Doroshenko and Steven R. Ehlert and Teruaki Enoto and Yuri Evangelista and Sergio Fabiani and Riccardo Ferrazzoli and Shuichi Gunji and Kiyoshi Hayashida and Jeremy Heyl and Wataru Iwakiri and Svetlana G. Jorstad and Vladimir Karas and Fabian Kislat and Takao Kitaguchi and Jeffery J. Kolodziejczak and Fabio La Monaca and Luca Latronico and Ioannis Liodakis and Simone Maldera and Alberto Manfreda and Frederic Marin and Andrea Marinucci and Alan P. Marscher and Herman L. Marshall and Francesco Massaro and Ikuyuki Mitsuishi and Chi-Yung Ng and Stephen L. O'Dell and Nicola Omodei and Chiara Oppedisano and Alessandro Papitto and George G. Pavlov and Abel L. Peirson and Matteo Perri and Melissa Pesce-Rollins and Maura Pilia and Andrea Possenti and Simonetta Puccetti and Brian D. Ramsey and John Rankin and Oliver J. Roberts and Roger W. Romani and Carmelo Sgro and Patrick Slane and Paolo Soffitta and Gloria Spandre and Doug A. Swartz and Toru Tamagawa and Fabrizio Tavecchio and Roberto Taverna and Yuzuru Tawara and Allyn F. Tennant and Nicholas E. Thomas and Alessio Trois and Sergey S. Tsygankov and Roberto Turolla and Jacco Vink and Kinwah Wu and Fei Xie},
journal= {arXiv preprint arXiv:2303.12034},
year = {2023}
}
备注
12 pages, 9 figures, 4 tables. Accepted for publication in MNRAS