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题名: Group of galaxies around the giant radio galaxy 4C 73.08
作者: Chen, R.1, 2; Peng, B.1, 2, 3; Strom, R. G.1, 4, 5, 6; Wei, J.1
刊名: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期: 2012-06-01
卷号: 422, 期号:4, 页码:3004-3009
关键词: techniques: spectroscopic ; ISM: jets and outflows ; galaxies: active ; galaxies: distances and redshifts ; galaxies: individual: 4C 73 ; 08 ; galaxies: ISM
DOI: 10.1111/j.1365-2966.2012.20781.x
文章类型: Article
英文摘要: The optical field of the giant radio galaxy (GRG) 4C 73.08 has been spectroscopically investigated to look for companions to the host 7Zw 292. We have taken spectra of 12 candidates and have determined redshifts for all of them. When combined with the previously known redshift of 7Zw 292, we find that the radio source is accompanied by a small group of nine galaxies, of which the GRG host is the brightest. Seven members of the group lie within 350 kpc of 7Zw 292, gathered around the brighter, more compact component of the double radio source. The whole group has a velocity dispersion of similar to 270 km s-1. We discuss this result in the light of the X-ray emission which has been detected from the region. 4C 73.08 follows the pattern found in other GRGs of being associated with a small group, but not falling in a rich cluster.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: COMPLETE SAMPLE ; X-RAY ; OBJECTS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000304246100017
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15630
Appears in Collections:暗物质和空间天文实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Beijing 100012, Peoples R China
3.Joint Lab Radio Astron Technol, Beijing 100012, Peoples R China
4.Netherlands Inst Radio Astron ASTRON, NL-7990 AA Dwingeloo, Netherlands
5.Univ Amsterdam, Fac Sci, Astron Inst Anton Pannekoek, NL-1012 WX Amsterdam, Netherlands
6.James Cook Univ, Ctr Astron, Townsville, Qld 4811, Australia
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