3C 84 喷流中检测到康普顿散射
高能天体物理现象
2025-11-19 v2
摘要
3C 84 是普罗斯星系团中最亮的星系，属于最近的强辐射性主动星系，几乎可被从低频射电到TeV γ射线检测到。我们报告了对3C 84进行的首次X射线偏振观测，使用的是Imaging X-ray Polarimetry Explorer，观测时长2.2毫秒，恰逢其在γ射线中的一次flare。这是一笔最长的强辐射性主动星系观测，使我们能够实现前所未有的灵敏度，导致检测到X射线偏振程度为 （约3.2σ置信度），其X射线电矢量偏振角为 ，与射电喷流方向在天空中对齐。光学偏振观测显示喷流轴附近也存在快速变动。我们的结果强烈支持X射线由相对论电子的康普顿散射产生的模型——具体而言，是发生在超星际黑洞远离处的自旋-康普顿散射模型。
引用
@article{arxiv.2510.16109,
title = {Detection of Compton scattering in the jet of 3C 84},
author = {Ioannis Liodakis and Sudip Chakraborty and Frédéric Marin and Steven R. Ehlert and Thibault Barnouin and Pouya M. Kouch and Kari Nilsson and Elina Lindfors and Tapio Pursimo and Georgios F. Paraschos and Riccardo Middei and Anna Trindade Falcão and Svetlana Jorstad and Iván Agudo and Yuri Y. Kovalev and Jacob J. Casey and Laura Di Gesu and Philip Kaaret and Dawoon E. Kim and Fabian Kislat and Ajay Ratheesh and M. Lynne Saade and Francesco Tombesi and Alan Marscher and Francisco José Aceituno and Giacomo Bonnoli and Víctor Casanova and Gabriel Emery and Juan Escudero Pedrosa and Daniel Morcuende and Jorge Otero-Santos and Alfredo Sota and Vilppu Piirola and Rumen Bachev and Anton Strigachev and George A. Borman and Tatiana S. Grishina and Vladimir A. Hagen-Thorn and Evgenia N. Kopatskaya and Elena G. Larionova and Daria A. Morozova and Sergey S. Savchenko and Ekaterina V. Shishkina and Ivan S. Troitskiy and Yulia V. Troitskaya and Andrey A. Vasilyev and Alexey V. Zhovtan and Ioannis Myserlis and Mark Gurwell and Garrett Keating and Ramprasad Rao and Sincheol Kang and Sang-Sung Lee and Sanghyun Kim and Whee Yeon Cheong and Hyeon-Woo Jeong and Chanwoo Song and Shan Li and Myeong-Seok Nam and Diego Álvarez-Ortega and Carolina Casadio and Emmanouil Angelakis and Alexander Kraus and Jenni Jormanainen and Vandad Fallah Ramazani and Chien-Ting Chen and Enrico Costa and Eugene Churazov and Riccardo Ferrazzoli and Giorgio Galanti and Ildar Khabibulin and Stephen L. O'Dell and Luigi Pacciani and Marco Roncadelli and Oliver J. Roberts and Paolo Soffitta and Douglas A. Swartz and Fabrizio Tavecchio and Martin C. Weisskopf and Irina Zhuravleva},
journal= {arXiv preprint arXiv:2510.16109},
year = {2025}
}
备注
21 pages, 13 figure, 1 Table, published in APJL