Deep images of cluster radio halos

被引：135

作者：

Bacchi, M

Feretti, L

Giovannini, G

Govoni, F

机构：

[1] CNR, Ist Radioastron, I-40129 Bologna, Italy

[2] Univ Bologna, Dipartimento Fis, I-40127 Bologna, Italy

[3] Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy

来源：

ASTRONOMY & ASTROPHYSICS | 2003年 / 400卷 / 02期

关键词：

radio continuum : general; galaxies : clusters : general; intergalactic medium; X-rays : galaxies : clusters;

D O I：

10.1051/0004-6361:20030044

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

New radio data are presented for the clusters A401, A545, A754, A1914, A2219 and A2390, where the presence of diffuse radio emission was suggested from the images of the NRAO VLA Sky Survey. Sensitive images of these clusters, obtained with the Very Large Array (VLA) at 20 cm confirm the existence of the diffuse sources and allow us to derive their fluxes and intrinsic parameters. The correlation between the halo radio power and cluster X-ray luminosity is derived for a large sample of halo clusters, and is briefly discussed.

引用

页码：465 / 476

页数：12

共 45 条

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