Study of asymmetric brightness distribution in distant clusters of galaxies

A. Furuzawa, T. Tawara, K. Yamashita

研究成果: ジャーナルへの寄稿学術論文査読

抄録

We present results of the study on the spatial asymmetric distribution of the X-ray surface brightness and the plasma temperature in distant clusters of galaxies (z>0.1) with ASCA. Though most of distant clusters we analyzed (∼ 6 clusters) show spherical symmetric shape, we found the significant excess from the iso-thermal beta model in two clusters. The temperature in that region seems to be different from the average. Recently asymmetric patterns in the surface brightness distribution and the plasma temperature have been detected even in the clusters had known as the spherical symmetric shaped cluster. This non-spherical symmetric distribution has been also suggested by gravitational lensing image analyses and multi-components of a velocity dispersion. It may be caused by a cluster-cluster merging or in-falling groups.

本文言語英語
ページ(範囲)785-788
ページ数4
ジャーナルAdvances in Space Research
25
3-4
DOI
出版ステータス出版済み - 01-01-2000
外部発表はい

All Science Journal Classification (ASJC) codes

  • 航空宇宙工学
  • 天文学と天体物理学
  • 地球物理学
  • 大気科学
  • 宇宙惑星科学
  • 地球惑星科学一般

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