X-RAY-EMISSION FROM VIRGO CLUSTER AND M87

被引：34
作者：
LAWRENCE, A
机构：
[1] X-ray Astronomy Group, Physics Department, University of Leicester, LE1 7RH, United Kingdom
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1978年 / 185卷 / 02期
关键词：
D O I：
10.1093/mnras/185.2.423
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Extensive observations of the Virgo Cluster by the Ariel V Sky Survey Instrument (SSI) show that the associated X-ray source is much larger than hitherto suspected, and is significantly elongated. The dimensions of the source at half peak power are ~ 2°.3 × 1°.7 with long axis at position angle ~ 90°. Various models are fitted to the source profiles at different position angles. The best fit is a model with two components: (a) a large, hard, thermal source of low surface brightness associated with the cluster itself; (b) a bright, soft, enhancement of the cluster emission centred on the giant elliptical galaxy M87. © Royal Astronomical Society.
引用
收藏
页码：423 / 434
页数：12
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