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arXiv 1012.5905astro-ph.CO
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团簇间镓团簇的性质研究

Investigation of Properties of the Intercluster Medium Rich Clusters of Galaxies

I. K. Rozgacheva, I. B. Kuvshinova

摘要:

对213个富星系团的性质进行了统计分析。证实了X射线光度与团内介质温度以及星系速度色散之间存在相关性。发现团簇内气体光学光度L_H α与X射线光度L_x之间存在新的反相关关系:log(L_H α/L_Sun)=a-b(log(L_x/L_Sun))。log(L_H α/L_Sun)-log(L_x/L_Sun)平面上序列的存在证明了不同星系团内气体的质量可以有很大的差异。

英文摘要:

The statistical analysis of properties of 213 rich clusters of galaxies is performed. The existence of correlations between the X-ray luminosity and the temperature of the intracluster medium and between the X-ray luminosity and the velocity dispersion of the galaxies is confirmed. New anti-correlation between optical luminosities L_Halpha and x-ray luminosities L_x of intracluster gas in clusters is discovered: log(L_Halpha/L_Sun)=a-b(log(L_x/L_Sun)). The existence of sequences in the log(L_Halpha/L_Sun)-log(L_x/L_Sun) plane testifies to that the masses of the intracluster gas in different clusters can differ significantly.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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