NGC 5548 中心超大质量黑洞产生的快速且长寿命的流出
高能天体物理现象
2014-06-20 v1 宇宙学与河外天体物理
星系天体物理
摘要
活动星系核中的超大质量黑洞通过强大的电离气体风排出大量物质。原型活动星系 NGC 5548 已被研究数十年，高分辨率 X 射线和紫外观测此前已显示出持续存在的电离流出。2013 年由六个空间天文台联合开展的观测活动显示，该星系核被一条前所未见、长期存在且团块状的电离气体流所遮蔽。它阻挡了 90% 的软 X 射线辐射，并导致同时出现的深且宽的紫外吸收谷。该气体的流出速度高达持续流出的五倍，且其距星系核仅几个光日，很可能起源于吸积盘。
引用
@article{arxiv.1406.5007,
title = {A fast and long-lived outflow from the supermassive black hole in NGC 5548},
author = {J. S. Kaastra and G. A. Kriss and M. Cappi and M. Mehdipour and P. -O. Petrucci and K. C. Steenbrugge and N. Arav and E. Behar and S. Bianchi and R. Boissay and G. Branduardi-Raymont and C. Chamberlain and E. Costantini and J. C. Ely and J. Ebrero and L. Di Gesu and F. A. Harrison and S. Kaspi and J. Malzac and B. De Marco and G. Matt and K. Nandra and S. Paltani and R. Person and B. M. Peterson and C. Pinto and G. Ponti and F. Pozo Nuñez and A. De Rosa and H. Seta and F. Ursini and C. P. de Vries and D. J. Walton and M. Whewell},
journal= {arXiv preprint arXiv:1406.5007},
year = {2014}
}
备注
25 pages, 8 figures. This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science, electronically available at Science Express (June 19, 2014). For a brief video explaining the key results of this paper, please visit http://www.issibern.ch/teams/ngc5548/?page_id=25