Constrain intergalactic medium from the SZ effect map

被引：1

作者：

Cao, Liang ^{[1
]}

Zuo, Wei

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China

[2] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

来源：

MODERN PHYSICS LETTERS A | 2006年 / 21卷 / 29期

基金：

中国国家自然科学基金;

关键词：

cosmology : theory; large-scale structure of the universe;

D O I：

10.1142/S0217732306020238

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we try to detect the SZ effect in the 2MASS DWT clusters and less bound objects in order to constrain the warm-hot intergalactic medium distribution on large scales by cross-correlation analysis. The results of both observed WMAP and mock SZ effect map indicate that the hot gas distributes from inside as well as outside of the high density regions of galaxy clusters, which is consistent with the results of both observation and hydro simulation. Therefore, the DWT measurement of the cross-correlation would be a powerful tool to probe the missing of baryons in the universe.

引用

页码：2233 / 2239

页数：7

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