BL Lac 型耀变体 1ES 0229+200 的 X 射线偏振
高能天体物理现象
2023-10-04 v1
摘要
我们给出了耀变体 1ES 0229+200 在 能段的偏振测量，这是首个被成像 X 射线偏振探测器（IXPE）观测到的极端高同步辐射峰源。结合相隔约两周的两次曝光，通过 IXPE 与 XMM-Newton 联合观测的光谱偏振拟合，我们发现偏振度为 ，电矢量位置角为 。无论是在短时间尺度（小时）还是较长时间尺度（天）上，均无证据表明偏振度或偏振角随能量或时间发生显著变化。同时代光学波段的偏振度低了 7，使 1ES 0229+200 成为迄今观测到的最强色散耀变体。这种高 X 射线偏振相对于光学偏振的情况，进一步支持高同步辐射峰耀变体中的 X 射线辐射起源于激波加速、能量分层电子群，但与许多近期试图重现 1ES 0229+200 能谱能量分布、将极高能同步辐射与康普顿峰归因于强湍流磁场附近费米加速的建模工作存在张力。
引用
@article{arxiv.2310.01635,
title = {X-ray Polarization of the BL Lac Type Blazar 1ES 0229+200},
author = {Steven R. Ehlert and Ioannis Liodakis and Riccardo Middei and Alan P. Marscher and Fabrizio Tavecchio and Iván Agudo and Pouya M. Kouch and Elina Lindfors and Kari Nilsson and Ioannis Myserlis and Mark Gurwell and Ramprasad Rao and Francisco Jose Aceituno and Giacomo Bonnoli and Victor Casanova and Beatriz Agiz-Gonzalez and Juan Escudero and Jorge Otero Santos and Alfredo Sota and Emmanouil Angelakis and Alexander Kraus and Garrett K. Keating and Lucio A. Antonelli and Matteo Bachetti and Luca Baldini and Wayne H. Baumgartner and Ronaldo Bellazzini and Stefano Bianchi and Stephen D. Bongiorno and Raffaella Bonino and Alessandro Brez and Niccolò 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 Niccolò Di Lalla and Alessandro Di Marco and Immacolata Donnarumma and Victor Doroshenko and Michal Dovčiak and Teruaki Enoto and Yuri Evangelista and Sergio Fabiani and Riccardo Ferrazzoli and Javier A. Garcia and Shuichi Gunji and Kiyoshi Hayashida and Jeremy Heyl and Wataru Iwakiri and Svetlana G. Jorstad and Philip Kaaret and Vladimir Karas and Fabian Kislat and Takao Kitaguchi and Jeffery J. Kolodziejczak and Henric Krawczynski and Fabio La Monaca and Luca Latronico and Simone Maldera and Alberto Manfreda and Frédéric Marin and Andrea Marinucci and Herman L. Marshall and Francesco Massaro and Giorgio Matt and Ikuyuki Mitsuishi and Tsunefumi Mizuno and Fabio Muleri and Michela Negro and C. -Y. 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 Pierre-Olivier Petrucci and Maura Pilia and Andrea Possenti and Juri Poutanen and Simonetta Puccetti and Brian D. Ramsey and John Rankin and Ajay Ratheesh and Oliver J. Roberts and Roger W. Romani and Carmelo Sgro and Patrick Slane and Paolo Soffitta and Gloria Spandre and Douglas A. Swartz and Toru Tamagawa and Roberto Taverna and Yuzuru Tawara and Allyn F. Tennant and Nicholas E. Thomas and Francesco Tombesi and Alessio Trois and Sergey S. Tsygankov and Roberto Turolla and Jacco Vink and Martin C. Weisskopf and Kinwah Wu and Fei Xie and Silvia Zane},
journal= {arXiv preprint arXiv:2310.01635},
year = {2023}
}
备注
17 Pages, 6 Figures, Resubmitted to ApJ after addressing referee comments