Chandra imaging of the complex X-ray core of the Perseus cluster

被引:517
作者
Fabian, AC
Sanders, JS
Ettori, S
Taylor, GB
Allen, SW
Crawford, CS
Iwasawa, K
Johnstone, RM
Ogle, PM
机构
[1] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England
[2] Natl Radio Astron Observ, Socorro, NM 87801 USA
[3] MIT, Space Res Ctr, Cambridge, MA 02139 USA
关键词
galaxies : clusters : individual : Perseus; cooling flows; galaxies : individual : NGC 1275; X-rays : galaxies;
D O I
10.1046/j.1365-8711.2000.03904.x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report subarcsec-resolution X-ray imaging of the core of the Perseus cluster around the galaxy NGC 1275 with the Chandra X-ray Observatory. The ROSAT-discovered holes associated with the radio lobes have X-ray bright rims which are cooler than the surrounding gas and not a result of shocks. The holes themselves may contain some hotter gas. We map strong photoelectric absorption across the northern lobe and rim owing to a small infalling irregular galaxy, known as the high-velocity system. Two outer holes, one of which was previously known, are identified with recently found spurs of low-frequency radio emission. The spiral appearance of the X-ray cooler gas and the outer optical parts of NGC 1275 may be due to angular momentum in the cooling flow.
引用
收藏
页码:L65 / +
页数:6
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