arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1306.2331astro-ph.HE
收藏

热而充满活力的宇宙:超大质量黑洞的封闭环境

The Hot and Energetic Universe: The close environments of supermassive black holes

Michal Dovciak, Giorgio Matt, Stefano Bianchi, Thomas Boller, Laura Brenneman, Michal Bursa, Antonino D'Ai, Tiziana di Salvo, Barbara de Marco, Rene Goosmann, V… 展开作者

Michal Dovciak, Giorgio Matt, Stefano Bianchi, Thomas Boller, Laura Brenneman, Michal Bursa, Antonino D'Ai, Tiziana di Salvo, Barbara de Marco, Rene Goosmann, Vladimir Karas, Kazushi Iwasawa, Erin Kara, Jon Miller, Giovanni Miniutti, Iossif Papadakis, Pierre-Olivier Petrucci, Gabriele Ponti, Delphine Porquet, Chris Reynolds, Guido Risaliti, Agata Rozanska, Luca Zampieri, Andreas Zezas, Andrew Young

摘要:

活动星系核(AGN)中的大部分活动都发生在距离超大质量黑洞几十个引力半径的范围内,在那里,吸积盘中的物质可能会失去几乎一半的能量,并产生大量的X射线,这些X射线是由日冕中的热电子通过盘光子的康普顿化发射的,部分被吸积盘反射。由于其大的有效面积和出色的能量分辨率,雅典娜+在AGN吸积物理学的理解方面的贡献将是基本的-和独特的-在许多方面。它将使我们能够通过研究反射光子和初级光子之间的时间滞后来绘制盘-日冕系统-这对于理解能量提取机制以及日冕与风和喷流的关系至关重要。这些滞后最近被XMM-牛顿发现,但只有Athena+具有充分利用这种技术所需的灵敏度。雅典娜+还将能够确定附近源中黑洞的自旋(并将这些测量扩展到本地宇宙之外),建立软X射线成分的性质,并以前所未有的细节映射AGN内部秒差距内的环核物质。

英文摘要:

Most of the action in Active Galactic Nuclei (AGN) occurs within a few tens of gravitational radii from the supermassive black hole, where matter in the accretion disk may lose up to almost half of its energy with a copious production of X-rays, emitted via Comptonization of the disk photons by hot electrons in a corona and partly reflected by the accretion disk. Thanks to its large effective area and excellent energy resolution, Athena+ contributions in the understanding of the physics of accretion in AGN will be fundamental - and unique - in many respects. It will allow us to map the disk-corona system - which is crucial to understand the mechanism of energy extraction and the relation of the corona with winds and jets - by studying the time lags between reflected and primary photons. These lags have been recently discovered by XMM-Newton, but only Athena+ will have the sensitivity required to fully exploit this technique. Athena+ will also be able e.g. to determine robustly the spin of the black hole in nearby sources (and to extend these measurements beyond the local Universe), to establish the nature of the soft X-ray components, and to map the circumnuclear matter within the AGN inner parsec with unprecedented details.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑