Direct Determination of Galaxy Luminosity Functions in Clusters

Direct Determination of Galaxy Luminosity Functions in Clusters
复制标题

星团中星系光度函数的直接测定

DOI:
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
A. Zabludoff
A. Zabludoff
中科院分区:
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文献类型:
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作者:
D. Christlein;A. Zabludoff

文献摘要

被引文献

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我们给出了来自六个邻近富星系团的体视样本的R波段星系光度函数。除了单个星系团的GLF外,我们还给出了星系团和场星系的复合GLF,其中一个星系团延伸到MR=-14。所有六个星系团样本都与复合GLF一致,但有证据表明星系团中静止群体的GLF并不普遍。此外,静止星系的GLF在星系团中明显比在野外更陡峭。星系团中的总体GLF与场星系的GLF是一致的,除了发光尖端,它在星系团中相对于场是增强的。
We present R-band galaxy luminosity functions (GLFs) from aspectroscopic sample of six nearby rich galaxy clusters. In addition to individual cluster GLFs, extending to, in one case, MR=–14, we also present composite GLFs for cluster and field galaxies toMR=–17. All six cluster samples are consistent with the composite GLF, but there is evidence that the GLF of the quiescent population in clusters is not universal. Furthermore, the GLF of quiescent galaxies is significantly steeper in clusters than in the field. The overall GLF in clusters is consistent with that of field galaxies, except for the luminous tip, which is enhanced in clusters versus the field.