A MAGNETIC RECONNECTION ORIGIN FOR THE SOFT X-RAY EXCESS IN AN ACTIVE GALACTIC NUCLEUS

doi:10.1088/0004-637X/773/1/23

YNAO OpenIR > 高能天体物理研究组

	A MAGNETIC RECONNECTION ORIGIN FOR THE SOFT X-RAY EXCESS IN AN ACTIVE GALACTIC NUCLEUS
	Zhong XG(钟晓谷)1,2,3 ; Wang JC(王建成)1,2
发表期刊	ASTROPHYSICAL JOURNAL
	2013-08-10
卷号	773 期号:1 页码:23-31
DOI	10.1088/0004-637X/773/1/23
产权排序	第1完成单位
收录类别	SCI
关键词	accretion, accretion disks galaxies: active galaxies: magnetic fields X-rays: galaxies
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.
资助项目	National Basic Research Program of China (973 Program)[2009CB824800] ; National Natural Science Foundation of China[11133006] ; National Natural Science Foundation of China[11163006] ; National Natural Science Foundation of China[11173054] ; Policy Research Program of the Chinese Academy of Sciences[KJCX2-YW-T24]
项目资助者	National Basic Research Program of China (973 Program)[2009CB824800] ; National Natural Science Foundation of China[11133006, 11163006, 11173054] ; Policy Research Program of the Chinese Academy of Sciences[KJCX2-YW-T24]
语种	英语
学科领域	天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
文章类型	Article
出版者	IOP PUBLISHING LTD
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0004-637X
URL	查看原文
归档日期	2013-07-24
WOS记录号	WOS:000322531900023
WOS研究方向	Astronomy & Astrophysics
WOS类目	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
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5031
专题	高能天体物理研究组中国科学院天体结构与演化重点实验室
通讯作者	Zhong XG(钟晓谷)
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
第一作者单位	中国科学院云南天文台
通讯作者单位	中国科学院云南天文台
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.

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