The alignment between the distribution of satellites and the orientation of their central galaxy
The alignment between the distribution of satellites and the orientation of their central galaxy
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卫星的分布与其中心星系的方向之间的对齐
DOI：
10.1111/j.1365-2966.2006.10373.x
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发表时间：
2006-01
影响因子：
4.8
通讯作者：
van den Bosch, FC
中科院分区：
文献类型：
--
作者：
Mao, SD;Yang, XH;Guo, YC;Kang, X;Weinmann, SM;Mo, HJ;Jing, YP;van den Bosch, FC
我们使用从斯隆数字巡天中选取的星系群来研究中心星系（定义为星系群中最亮的成员）的方向与卫星星系分布之间的排列情况。通过这种构建方式，我们因此只……
We use galaxy groups selected from the Sloan Digital Sky Survey to examine the alignment between the orientation of the central galaxy (defined as the brightest group member) and the distribution of satellite galaxies. By construction, we therefore only address the alignment on scales smaller than the halo virial radius. We find a highly significant alignment of satellites with the major axis of their central galaxy. This is in qualitative agreement with the recent study of Brainerd, but inconsistent with several previous studies who detected a preferential minor-axis alignment. The alignment strength in our sample is strongest between red central galaxies and red satellites. On the contrary, the satellite distribution in systems with a blue central galaxy is consistent with isotropic. We also find that the alignment strength is stronger in more massive haloes and at smaller projected radii from the central galaxy. In addition, there is a weak indication that fainter (relative to the central galaxy) satellites are more strongly aligned. We present a detailed comparison with previous studies, and discuss the implications of our findings for galaxy formation.
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DOI：
10.1046/j.1365-8711.2002.05305.x
发表时间：
2001-05
影响因子：
4.8
作者：
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通讯作者：
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DOI：
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发表时间：
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期刊：
The Astrophysical Journal
影响因子：
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1975-07
期刊：
The Astronomical Journal
影响因子：
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通讯作者：
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DOI：
10.1086/423992
发表时间：
2004-05
期刊：
The Astrophysical Journal Letters
影响因子：
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作者：
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通讯作者：
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DOI：
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发表时间：
1998-01
影响因子：
4.8
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通讯作者：
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