The Effect of AGN and SNe Feedback on Star Formation, Reionization and the Near Infrared Background

	The Effect of AGN and SNe Feedback on Star Formation, Reionization and the Near Infrared Background
	Wang, L1 ; Mao JR(毛基荣)2 ; Xiang, SP 1; Yuan, YF 1
刊名	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
	2008
卷号	8 期号:6 页码:631-642
关键词	cosmology: theory galaxies: evolution infrared: general stars: formation
ISSN号	1009-9271
通讯作者	Wang, L (reprint author), Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Peoples R China.
产权排序	第二完成单位
英文摘要	Feedback from supernovae (SNe) and from active galactic nuclei (AGN) accompanies the history of star formation and galaxy evolution. We present an analytic model to explain how and when the SNe and AGN exert their feedback effects oil the star formation and galaxy evolution processes. By using SNe and AGN kinetic feedback mechanisms based on the Lambda Cold Dark Matter (LCDM) model, we explore how these feedback mechanisms affect the star formation history (SFH), the Near-Infrared Background (NIRB) flux and the cosmological reionization. We find the values of the feedback strengths, epsilon(AGN) = 1.0(-0.3)(+0.5) and epsilon(SN) = 0.04(-0.02)(+0.02), can provide a reasonable explanation of most of the observational re sults, and that the AGN feedback effect on star formation history is quite different from the SNe feedback at high redshifts. Our conclusions manifest quantitatively that these feedback effects decrease star formation rate density (SFRD) and the NIRB flux (in 1.4 - 4.0 mu m), and postpone the time of completion of the cosmological reionization.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	INITIAL MASS FUNCTION ; FORMATION HISTORY ; HIGH-REDSHIFT ; LUMINOSITY FUNCTIONS ; PHYSICAL MODEL ; BLACK-HOLES ; DARK-AGES ; GALAXIES ; DUST ; CONSTRAINTS
收录类别	SCI
原文出处	http://iopscience.iop.org/1009-9271/8/6/02/
语种	英语
WOS记录号	WOS:000262268400002
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4967]
专题	云南天文台_高能天体物理研究组
作者单位	1.Center for Astrophysics, University of Science and Technology of China, Hefei 230026, China 2.Yunnan Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011, China
推荐引用方式 GB/T 7714	Wang, L,Mao JR,Xiang, SP,et al. The Effect of AGN and SNe Feedback on Star Formation, Reionization and the Near Infrared Background[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2008,8(6):631-642.
APA	Wang, L,Mao JR,Xiang, SP,&Yuan, YF.(2008).The Effect of AGN and SNe Feedback on Star Formation, Reionization and the Near Infrared Background.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,8(6),631-642.
MLA	Wang, L,et al."The Effect of AGN and SNe Feedback on Star Formation, Reionization and the Near Infrared Background".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 8.6(2008):631-642.