Optical spectroscopy of the ROSAT X-ray brightest clusters.

Optical spectroscopy of the ROSAT X-ray brightest clusters.
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ROSAT X 射线最亮星团的光谱。

DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
R. Schwarz
R. Schwarz
中科院分区：
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文献类型：
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作者：
S. Allen;A. Edge;A. Fabian;H. Böhringer;C. Crawford;H. Ebeling;R. Johnstone;T. Naylor;R. Schwarz

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介绍了对ROSAT全天巡天探测到的X射线最亮星系团进行光学跟踪研究的第一阶段的结果。用艾萨克·牛顿望远镜上的暗天体摄谱仪测量了RASS中X射线最亮的阿贝尔和兹威基星系团中29个中心星系的红移。大约40%的中央星系光谱显示出强烈的光学线发射。在某些情况下，这种排放是相当壮观的
The results from the first stage of an optical follow-up study of the X-ray brightest clusters of galaxies detected in the ROSAT All-Sky Survey (RASS) are presented. The redshifts of the central galaxies in 29 of the X-ray brightest Abell and Zwicky clusters in the RASS have been measured using the Faint Object Spectrograph on the Isaac Newton Telescope. Approximately 40 per cent of the central galaxy spectra obtained show strong optical line emission. In several cases this emission is quite spectacular