A powerful radio halo in the hottest known cluster of galaxies 1E 0657-56

被引：190

作者：

Liang, H

Hunstead, RW

Birkinshaw, M

Andreani, P

机构：

[1] Univ Bristol, Dept Phys, Bristol BS8 1TL, Avon, England

[2] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

[3] Osserv Astron Padova, I-35122 Padua, Italy

来源：

ASTROPHYSICAL JOURNAL | 2000年 / 544卷 / 02期

关键词：

cosmic microwave background; galaxies; clusters; individual; (1E; 0657-56; RX J0658-5557) intergalactic medium; radio continuum : general; techniques : interferometric; X-rays : general;

D O I：

10.1086/317223

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the detection of a diffuse radio halo source in the hottest known cluster of galaxies 1E 0657-56 (RX J0658-5557). The radio halo has a morphology similar to the X-ray emission from the hot intracluster medium. The presence of a luminous radio halo in such a hot cluster is further evidence for a steep correlation between the radio halo power and the X-ray temperature. We favor models for the origin of radio halo sources involving a direct connection between the X-ray emitting thermal particles and the radio emitting relativistic particles.

引用

页码：686 / 701

页数：16

共 60 条

[1] The impact of cooling flows on the TX-LBol relation for the most luminous clusters [J].