TEMPERATURE AND IRON ABUNDANCE VARIATION OF THE GAS IN THE PERSEUS CLUSTER

被引：56
作者：
ARNAUD, KA
MUSHOTZKY, RF
EZAWA, H
FUKAZAWA, Y
OHASHI, T
BAUTZ, MW
CREWE, GB
GENDREAU, KC
YAMASHITA, K
KAMATA, Y
AKIMOTO, F
机构：
[1] UNIV TOKYO,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN
[2] TOKYO METROPOLITAN UNIV,DEPT PHYS,HACHIOJI,TOKYO 19203,JAPAN
[3] MIT,CTR SPACE RES,CAMBRIDGE,MA 02139
[4] NAGOYA UNIV,DEPT ASTROPHYS,CHIKUSA KU,NAGOYA,AICHI 46401,JAPAN
[5] UNIV MARYLAND,DEPT ASTRON,COLLEGE PK,MD 20742
来源：
ASTROPHYSICAL JOURNAL | 1994年 / 436卷 / 01期
关键词：
GALAXIES; CLUSTERS OF;
D O I：
10.1086/187634
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the first two-dimensional map of the temperature and iron abundance in the Perseus cluster. Analysis of spectra obtained using the Gas Imaging Spectrometer on ASCA shows nonaxisymmetric variations in both the temperature and iron abundance. Traveling west from the cluster center, the temperature increases to 9 keV at 20' and then decreases rapidly to 5 keV at 40'. There is a hot (>10 keV) region to the northwest of the cluster center. The abundance is approximately constant over much of the surveyed region, but there is evidence for an increased abundance in the northwest hot area and a gradual decrease in a westerly direction.
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页码：L67 / L70
页数：4
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