| 书目名称 | X-ray Studies of the Central Engine in Active Galactic Nuclei with Suzaku |
| 编辑 | Hirofumi Noda |
| 视频video | |
| 概述 | Nominated as an outstanding contribution by The University of Tokyo‘s Department of Astronomy in 2013.Presents a technique for variability-assisted spectral decomposition of X-ray components generated |
| 丛书名称 | Springer Theses |
| 图书封面 |  |
| 描述 | .The aim of this research was to use the X-ray satellite .Suzaku. to establish a picture of a central engine that effectively converts the gravitational energy of accreting matter onto the supermassive black hole to a huge amount of radiation in an active galactic nucleus. Although the engine is known to consist of a Comptonizing corona and an accretion disk, its image has remained unclear because primary emissions, coming directly from the engine, cannot be identified in X-ray spectra without models. The book describes a technique of time variability assisted spectral decomposition to model-independently examine X-ray signals, and how this was applied to the .Suzaku. archive data of active galactic nuclei. As a result, at least three distinct primary X-ray components have been discovered in an X-ray from an active galactic nucleus, presumably indicating a novel picture that the engine is composed of multiple coronae with different physical properties in an accretion flow. Furthermore, the determination of the spectral shapes of the primary X-rays has a significant impact on estimations of black hole spins, because it is essential to quantify reprocessed X-ray spectra. The successf |
| 出版日期 | Book 2016 |
| 关键词 | ASTRO-H; Active galactic nuclei; Decomposition of X-ray spectral components; Supermassive black hole; Su |
| 版次 | 1 |
| doi | https://doi.org/10.1007/978-981-287-721-5 |
| isbn_softcover | 978-981-13-5708-4 |
| isbn_ebook | 978-981-287-721-5Series ISSN 2190-5053 Series E-ISSN 2190-5061 |
| issn_series | 2190-5053 |
| copyright | Springer Science+Business Media Singapore 2016 |
发表于 2025-3-21 17:54:30
