The evolution of galaxies in and around clusters at high-redshift

被引：22

作者：

Fujita, Y ^{[1
]}

Goto, T

机构：

[1] Natl Astron Observ, Mitaka, Tokyo 1818588, Japan

[2] Grad Univ Adv Studies, Dept Astron Sci, Mitaka, Tokyo 1818588, Japan

[3] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2004年 / 56卷 / 04期

关键词：

galaxies : clusters : general; galaxies : evolution; galaxies : high-redshift; galaxies : interactions;

D O I：

10.1093/pasj/56.4.621

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we focus on ram-pressure stripping and evaporation of disk galaxies in and around a cluster. We show that the evolution of the disk surface density affects the efficiency of ram-pressure stripping of galaxies at z greater than or similar to 1. We also consider the saturation of thermal conduction in detail and show that it cannot be ignored at larger radii of a cluster, which makes the time-scale of the evaporation larger. Both the ram-pressure stripping and evaporation could affect the evolution of galaxies even around a cluster. In particular, the observed gradual decline of the star-formation rates of galaxies in and around clusters could be explained by evaporation without resorting to speculative strangulation (stripping of warm gas in galactic halos).

引用

页码：621 / 631

页数：11

共 69 条

[1] Ram pressure stripping of spiral galaxies in clusters [J].