Kinematic effects of velocity fluctuations for the dark-halo population in a ΛCDM model

被引：0

作者：

Kurbatov, E. P. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Astron, Moscow 119017, Russia

来源：

ASTRONOMY REPORTS | 2015年 / 59卷 / 04期

关键词：

MASS FUNCTION; GALAXIES; EVOLUTION; CLUSTERS;

D O I：

10.1134/S1063772915040058

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is known that I > CDM cosmological models predict too many dark halos compared to the observed numbers. This excess is derived from the virialized mass in the Local Supercluster and its vicinity. Taking into account cosmological velocity fluctuations during the formation of the dark halo population makes it possible to eliminate this remaining contradiction in the I > CDM model. Based on Press-Schechter formalism, a model describing the formation of the dark halo population is developed, taking into account kinematic effects in the dark matter. A quantitative explanation of the virialized-mass deficit in the local Universe is obtained in this model.

引用

页码：257 / 270

页数：14

共 8 条

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