Chandra ACIS-S observations of Abell 4059:: Signs of dramatic interaction between a radio galaxy and a galaxy cluster

被引：87

作者：

Heinz, S

Choi, YY

Reynolds, CS

Begelman, MC

机构：

[1] Max Planck Inst Astrophys, D-85740 Garching, Germany

[2] Ewha Womans Univ, Dept Phys, Seoul 120750, South Korea

[3] Ewha Womans Univ, CAIS, Seoul 120750, South Korea

[4] Kyungpook Natl Univ, Ctr High energy Phys, Taegu 702701, South Korea

[5] Univ Colorado, JILA, Boulder, CO 80309 USA

[6] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[7] Univ Colorado, Dept Astrophys & Planetary Sci, UCB 391, Boulder, CO 80309 USA

来源：

ASTROPHYSICAL JOURNAL | 2002年 / 569卷 / 02期

关键词：

galaxies : clusters : individual (Abell 4059); galaxies : jets; hydrodynamics; X-rays : galaxies : clusters;

D O I：

10.1086/340688

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present Chandra observations of the galaxy cluster A4059. We find strong evidence that the FR I radio galaxy PKS 2354-35 at the center of A4059 is inflating cavities with radii similar to20 kpc in the intracluster medium (ICM), similar to the situation seen in Perseus A and Hydra A. We also find evidence for interaction between the ICM and PKS 2354-35 on small scales in the very center of the cluster. Arguments are presented suggesting that this radio galaxy has faded significantly in radio power (possibly from an FR II state) over the past 10(8) yr.

引用

页码：L79 / L82

页数：4

共 21 条

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