ASCA Observations of the Sculptor Supercluster
ASCA Observations of the Sculptor Supercluster
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ASCA 对雕塑家超星系团的观测
DOI：
10.1093/pasj/50.5.537
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发表时间：
1997
影响因子：
2.3
通讯作者：
T. Tamura
中科院分区：
文献类型：
--
作者：
H. Obayashi;K. Makishima;T. Tamura
摘要 玉夫座超星系团是一个红移为 0.11 的超星系团，位于银河系南极附近。我们于1996年6月、1996年12月和1997年12月利用ASCA对超星团的中心区域进行了观测。检测到了超星团中几个星团的X射线发射，并分析了星团的光度、温度和金属丰度等特性。超星团中的星团和其他星团之间的 X 射线特性没有发现差异。我们还搜索了与超星团相关的热扩散等离子体的 X 射线发射，并获得了 2 至 10 keV 范围内发射的上限为 9.2 × 10−9 ergs s−1 cm−2 str−1 。
Abstract The Sculptor supercluser is a supercluster of galaxies with a redshift of 0.11, near the south Galactic pole. We observed central regions of the supercluster with ASCA in June 1996, Dec. 1996 and Dec. 1997. X-ray emission from several clusters in the supercluster was detected and properties of the clusters such as luminocity, temperature and metal abundance were analysed. No difference in X-ray properties were found between clusters in the supercluster and other clusters. We also searched for X-ray emission from hot diffuse plasma associated with the supercluster, and obtained an upper limit to the emission as 9.2 × 10−9 ergs s−1 cm−2 str−1 in 2 to 10 keV.