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题名: Galaxy group around giant radio galaxy NGC 315
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: 2012-03-01
卷号: 420, 期号:3, 页码:2715-2726
关键词: techniques: spectroscopic ; ISM: jets and outflows ; galaxies: active ; galaxies: distances and redshifts ; galaxies: individual: NGC 315 ; galaxies: ISM
DOI: 10.1111/j.1365-2966.2011.20245.x
文章类型: Article
英文摘要: We have investigated the environment of the giant radio galaxy NGC 315 with its associated group of galaxies selected by their spectroscopic redshifts. Observations were made with the 2.16-m optical telescope at Xinglong Station of the National Astronomical Observatories of China. In addition to 25 galaxies near NGC 315 with published redshifts, we have successfully determined 21 new redshifts of candidates, five of which are previously unknown members of the NGC 315 galaxy group. We examine and discuss the spatial structure and kinematics of this group (which is part of the PerseusPisces filament). Nearly 40 per cent of its members are concentrated near NGC 315, close to the emission from its brighter radio jet. The X-ray luminosity implied by the optical velocity dispersion is higher than that derived empirically from observations of other groups, suggesting that X-ray-emitting gas within the NGC 315 group has a low density. This may be one reason for the size of the radio source.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: PISCES-PERSEUS SUPERCLUSTER ; X-RAY ; MULTIFREQUENCY OBSERVATIONS ; GROUP MEMBERSHIP ; SCALE STRUCTURE ; REDSHIFT SURVEY ; NGC-315 ; JETS ; SAMPLE ; CLUSTERS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000300702200068
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内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15611
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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