THE MASS FUNCTION OF GALAXY CLUSTERS

被引：2
|
作者：
ZHAN, Y
机构：
[1] Department of Astronomy, University of Toronto, Toronto, Ont. M5S 1A7
来源：
ASTROPHYSICAL JOURNAL | 1990年 / 355卷 / 02期
关键词：
Cosmology; Galaxies: clustering;
D O I：
10.1086/168771
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The model by Press and Schechter for the mass function of clusters of point masses in an Einstein-de Sitter universe is modified by dropping their assumption of uniform protoclusters. This modification of the model is shown to be necessary, and the modification appears to provide better agreement with the shape of the mass function obtained from N-body simulations. The assumption of an Einstein-de Sitter universe in the original model is also relaxed to the assumption of any Friedmann-Lemaître universe with a zero cosmological constant. Discussion of the mass function of galaxy clusters is presented with an application of the modified model.
引用
收藏
页码：387 / 392
页数：6
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