A MAGNETIC RECONNECTION ORIGIN FOR THE SOFT X-RAY EXCESS IN AN ACTIVE GALACTIC NUCLEUS
文献类型：期刊论文
| 作者 | Zhong XG(钟晓谷)1,2,3 ; Wang JC(王建成)1,2
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2013-08-10 |
| 卷号 | 773期号:1页码:23-31 |
| 关键词 | accretion, accretion disks galaxies: active galaxies: magnetic fields X-rays: galaxies |
| ISSN号 | 0004-637X |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Zhong, XG (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | We present a new scenario to explain the soft X-ray excess in an active galactic nucleus (AGN). Magnetic reconnection could happen in a thin layer on the surface of an accretion disk. Electrons are accelerated by a shock wave and turbulence is triggered by magnetic reconnection. Inverse Compton scattering then takes place above the accretion disk, producing soft X-rays. Based on the standard disk model, we estimate the magnetic field strength and the energy released by magnetic reconnection along the accretion disk and find that the luminosity arising from magnetic reconnection is mostly emitted in the inner disk, which is dominated by radiation pressure. We then apply the model to fit the spectra of AGNs with strong soft X-ray excess. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SEYFERT 1 GALAXIES ; DOMINATED ACCRETION DISKS ; XMM-NEWTON VIEW ; BLACK-HOLES ; PG QUASARS ; FAIRALL 9 ; AGN ; RADIATION ; SUZAKU ; SAMPLE |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-637X/773/1/23/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000322531900023 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5031]  |
| 专题 | 云南天文台_高能天体物理研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.National Astronomical Observatories, Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China 3.Graduate School, Chinese Academy of Sciences, Beijing, China Dates |
| 推荐引用方式 GB/T 7714 | Zhong XG,Wang JC. A MAGNETIC RECONNECTION ORIGIN FOR THE SOFT X-RAY EXCESS IN AN ACTIVE GALACTIC NUCLEUS[J]. ASTROPHYSICAL JOURNAL,2013,773(1):23-31. |
| APA | Zhong XG,&Wang JC.(2013).A MAGNETIC RECONNECTION ORIGIN FOR THE SOFT X-RAY EXCESS IN AN ACTIVE GALACTIC NUCLEUS.ASTROPHYSICAL JOURNAL,773(1),23-31. |
| MLA | Zhong XG,et al."A MAGNETIC RECONNECTION ORIGIN FOR THE SOFT X-RAY EXCESS IN AN ACTIVE GALACTIC NUCLEUS".ASTROPHYSICAL JOURNAL 773.1(2013):23-31. |
入库方式： OAI收割
来源：云南天文台
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