A wide Chandra view of the core of the Perseus cluster

被引：115

作者：

Fabian, A. C. ^{[1
]}

Sanders, J. S. ^{[1
]}

Allen, S. W. ^{[2
,3
]}

Canning, R. E. A. ^{[1
]}

Churazov, E. ^{[4
]}

Crawford, C. S. ^{[1
]}

Forman, W. ^{[5
]}

GaBany, J. ^{[6
]}

Hlavacek-Larrondo, J. ^{[1
]}

Johnstone, R. M. ^{[1
]}

Russell, H. R. ^{[7
]}

Reynolds, C. S. ^{[8
]}

Salome, P. ^{[9
]}

Taylor, G. B. ^{[10
]}

Young, A. J. ^{[11
]}

机构：

[1] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[2] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA

[3] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[4] Max Planck Inst Astrophys, D-85741 Garching, Germany

[5] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[6] Blackbird 2 Observ, Alder Springs, CA 93602 USA

[7] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

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

[9] CNRS, UMR 8112, Observ Paris, LERMA, F-75014 Paris, France

[10] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA

[11] Univ Bristol, HH Wills Phys Lab, Bristol BS8 3HG, Avon, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2011年 / 418卷 / 04期

基金：

美国国家航空航天局;

关键词：

galaxies: clusters: general; galaxies: individual: NGC 1275; intergalactic medium; X-rays: galaxies; X-RAY SPECTROSCOPY; COLD FRONTS; GALAXY CLUSTER; EMITTING GAS; RADIO LOBES; BLACK-HOLE; SHOCKS; EMISSION; CAVITIES; ORIGIN;

D O I：

10.1111/j.1365-2966.2011.19402.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present new Chandra images of the X-ray emission from the core of the Perseus cluster of galaxies. The total observation time is now 1.4 Ms. New depressions in X-ray surface brightness are discovered to the north of NGC 1275, which we interpret as old rising bubbles. They imply that bubbles are long-lived and do not readily breakup when rising in the hot cluster atmosphere. The existence of a 300 kpc long NNWSSW bubble axis means there cannot be significant transverse large-scale flows exceeding 100 km s-1. Interesting spatial correlations are seen along that axis in early deep radio maps. A semicircular cold front about 100 kpc west of the nucleus is seen. It separates an inner disturbed region dominated by the activity of the active nucleus of NGC 1275 from the outer region where a subcluster merger dominates.

引用

页码：2154 / 2164

页数：11

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