The fate of dwarf galaxies in clusters and the origin of intracluster stars

被引：12
|
作者：
Barai, Paramita [1 ]
Brito, William [1 ]
Martel, Hugo [1 ]
机构：
[1] Univ Laval, Dept Phys Genie Phys & Opt, Quebec City, PQ G1K 7P4, Canada
来源：
JOURNAL OF ASTROPHYSICS AND ASTRONOMY | 2009年 / 30卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Cosmology; galaxies:; clusters; dwarfs interactions; methods: numerical; DIFFUSE OPTICAL LIGHT; VIRGO-CLUSTER; LUMINOSITY FUNCTION; PLANETARY-NEBULAE; COMA CLUSTER; DARK-MATTER; CD CLUSTERS; XMM-NEWTON; CHANDRA OBSERVATIONS; DENSITY PROFILE;
D O I：
10.1007/s12036-009-0001-1
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The main goal of this paper is to compare the relative importance of destruction by tides vs. destruction by mergers, in order to assess if tidal destruction of galaxies in clusters is a viable scenario for explaining the origin of intracluster stars. We have designed a simple algorithm for simulating the evolution of isolated clusters. The distribution of galaxies in the cluster is evolved using a direct gravitational N-body algorithm combined with a subgrid treatment of physical processes such as mergers, tidal disruption, and galaxy harassment. Using this algorithm, we have performed a total of 148 simulations. Our main results are: destruction of dwarf galaxies by mergers dominates over destruction by tides, and the destruction of galaxies by tides is sufficient to explain the observed intracluster light in clusters.
引用
收藏
页码：1 / 36
页数：36
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