Radio-loud active galactic nuclei and the L(X)-sigma relation of galaxy groups and clusters

	Radio-loud active galactic nuclei and the L(X)-sigma relation of galaxy groups and clusters
	Shen, Shiyin1,2,3,4 ; Kauffmann, Guinevere 2; von der Linden, Anja 2; White, Simon D. M.2; Best, P. N.5
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2008-09-21
卷号	389 期号:3 页码:1074-1086
关键词	galaxies : clusters : general galaxies : jets
英文摘要	We use the ROSAT All-Sky Survey to study the X-ray properties of a sample of 625 groups and clusters of galaxies selected from the Sloan Digital Sky Survey. We stack clusters with similar velocity dispersions and investigate whether their average X-ray luminosities and surface brightness profiles vary with the radio activity level of their central galaxies. We find that at a given value of sigma, clusters with a central radio active galactic nucleus (AGN) have more concentrated X-ray surface brightness profiles, larger central galaxy masses and higher X-ray luminosities than clusters with radio-quiet central galaxies. The enhancement in X-ray luminosity is more than a factor of 2, is detected with better than 6 sigma significance and cannot be explained by X-ray emission from the radio AGN itself. This difference is largely due to a subpopulation of radio-quiet, high velocity dispersion clusters with low-mass central galaxies. These clusters are underluminous at X-ray wavelengths when compared to otherwise similar clusters where the central galaxy is radio-loud, more massive, or both.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	DIGITAL-SKY SURVEY ; COOLING FLOWS ; RAY-PROPERTIES ; INTRACLUSTER MEDIUM ; BRIGHTEST CLUSTER ; ABELL CLUSTERS ; ROSAT ; CORE ; LUMINOSITY ; CATALOG
收录类别	SCI
语种	英语
WOS记录号	WOS:000259087500006
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/19533]
专题	上海天文台_星系宇宙学重点实验室
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Max Planck Inst Astrophys, D-85741 Garching, Germany 3.Shanghai Astron Observ, Joint Inst Galaxy & Cosmol, Shanghai, Peoples R China 4.Univ Sci & Technol China, Beijing, Peoples R China 5.Royal Observ Edinburgh, Inst Astron, SUPA, Edinburgh EH9 3HJ, Midlothian, Scotland
推荐引用方式 GB/T 7714	Shen, Shiyin,Kauffmann, Guinevere,von der Linden, Anja,et al. Radio-loud active galactic nuclei and the L(X)-sigma relation of galaxy groups and clusters[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2008,389(3):1074-1086.
APA	Shen, Shiyin,Kauffmann, Guinevere,von der Linden, Anja,White, Simon D. M.,&Best, P. N..(2008).Radio-loud active galactic nuclei and the L(X)-sigma relation of galaxy groups and clusters.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,389(3),1074-1086.
MLA	Shen, Shiyin,et al."Radio-loud active galactic nuclei and the L(X)-sigma relation of galaxy groups and clusters".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 389.3(2008):1074-1086.