Einstein Observatory evidence for the widespread baryon overdensity in clusters of galaxies

Einstein Observatory evidence for the widespread baryon overdensity in clusters of galaxies
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爱因斯坦天文台证明星系团中普遍存在重子密度过高的证据

DOI:
10.1093/mnras/273.1.72
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发表时间:
1995
影响因子:
4.8
通讯作者:
A. Fabian
A. Fabian
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
D. White;A. Fabian

文献摘要

被引文献

相似文献

本文分析了爱因斯坦天文台观测到的19个发光星系团的X射线表面亮度剖面。我们的目标是确定团簇气体质量的半径在1和3Mpc之间。S.白色和弗伦克利用后发座星系团的观测结果表明,气体的质量分数超过了宇宙平均重子分数的预测。我们在这里表明,这个问题是常见的集群,并简要讨论的影响。
We have analysed the X-ray surface brightness profiles of 19 luminous clusters of galaxies observed with the EINSTEIN Observatory. Our aim is to determine cluster gas masses out to radii between 1 and 3Mpc. S. White and Frenk used observations of the Coma cluster to show that the fraction of mass in gas exceeds that expected from predictions of the mean baryon fraction of the universe. We show here that the problem is common in clusters, and briefly discuss the implications.