X-RAY EMITTING FILAMENTS IN THE COOLING FLOW CLUSTER-A2029

被引：47
|
作者：
SARAZIN, CL [1 ]
OCONNELL, RW [1 ]
MCNAMARA, BR [1 ]
机构：
[1] KAPTEYN INST,9700 AV GRONINGEN,NETHERLANDS
来源：
ASTROPHYSICAL JOURNAL | 1992年 / 389卷 / 02期
关键词：
COOLING FLOWS; GALAXIES; CLUSTERING; INTERGALACTIC MEDIUM; MAGNETIC FIELDS; RADIO CONTINUUM; X-RAYS;
D O I：
10.1086/186348
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present high-resolution X-ray observations of the cluster A2029 with the ROSAT HRI which confirm the presence of a cooling flow, despite the lack of optical line emission or evidence for recent star formation. The cooling rate and radius are M(c) almost-equal-to 370 M. yr-1 and r(c) almost-equal-to 230 kpc, respectively. Emission from the inner cooling flow is dominated by a number of X-ray-emitting filaments. This may be the first case where such inhomogeneities have been clearly resolved. The filaments may be supported in part by magnetic fields and may be connected with the filaments of very strong Faraday rotation seen in several nearly cooling flows.
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页码：L59 / &
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