THE STARBURST - ACTIVE GALACTIC NUCLEUS CONNECTION: THE ROLE OF YOUNG STELLAR POPULATIONS IN FUELING SUPERMASSIVE BLACK HOLES

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	THE STARBURST - ACTIVE GALACTIC NUCLEUS CONNECTION: THE ROLE OF YOUNG STELLAR POPULATIONS IN FUELING SUPERMASSIVE BLACK HOLES
	Chen YM(陈燕梅); Wang JM(王建民); Yan CS(闫昌硕); Hu C(胡晨); Zhang S(张澍); Chen, YM; Wang, JM; Yan, CS; Hu, C; Zhang, S
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2009
卷号	695 期号:2 页码:L130-L133
关键词	black hole physics galaxies: active galaxies: nuclei
通讯作者	[Chen, Yan-Mei ; Wang, Jian-Min ; Yan, Chang-Shuo ; Hu, Chen ; Zhang, Shu] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China ; [Wang, Jian-Min] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
英文摘要	Tracing the star formation history in circumnuclear regions (CNRs) is a key step toward understanding the starburst -active galactic nucleus (AGN) connection. However, bright nuclei outshining the entire host galaxy prevent the analysis of the stellar populations of CNRs around type-I AGNs. Obscuration of the nuclei by the central torus provides a unique opportunity to study the stellar populations of AGN host galaxies. We assemble a sample of 10,848 type-II AGNs with a redshift range of 0.03 <= z <= 0.08 from the Sloan Digital Sky Survey's Data Release 4, and measure the mean specific star formation rates (SSFRs) over the past 100 Myr in the central similar to 1-2 kpc. We find a tight correlation between the Eddington ratio (lambda) of the central black hole (BH) and the mean SSFR, strongly implying that supernova explosions (SNexp) play a role in the transportation of gas to galactic centers. We outline a model for this connection by accounting for the role of SNexp in the dynamics of CNRs. In our model, the viscosity of turbulence excited by SNexp is enhanced, and thus angular momentum can be efficiently transported, driving inflows toward galactic centers. Our model explains the observed relation. lambda alpha SFR(1.5-2.0), suggesting that AGNs are triggered by SNexp in CNRs.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
原文出处	SCI
语种	英语
WOS记录号	WOS:000264872100002
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240246]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Chen YM,Wang JM,Yan CS,et al. THE STARBURST - ACTIVE GALACTIC NUCLEUS CONNECTION: THE ROLE OF YOUNG STELLAR POPULATIONS IN FUELING SUPERMASSIVE BLACK HOLES[J]. ASTROPHYSICAL JOURNAL LETTERS,2009,695(2):L130-L133.
APA	陈燕梅.,王建民.,闫昌硕.,胡晨.,张澍.,...&Zhang, S.(2009).THE STARBURST - ACTIVE GALACTIC NUCLEUS CONNECTION: THE ROLE OF YOUNG STELLAR POPULATIONS IN FUELING SUPERMASSIVE BLACK HOLES.ASTROPHYSICAL JOURNAL LETTERS,695(2),L130-L133.
MLA	陈燕梅,et al."THE STARBURST - ACTIVE GALACTIC NUCLEUS CONNECTION: THE ROLE OF YOUNG STELLAR POPULATIONS IN FUELING SUPERMASSIVE BLACK HOLES".ASTROPHYSICAL JOURNAL LETTERS 695.2(2009):L130-L133.