论文标题
部分可观测时空混沌系统的无模型预测
Hidden Cooling Flows in Clusters of Galaxies II: A Wider Sample
论文作者
论文摘要
最近，我们发现了3个星系簇，Centaurus，Perseus和A1835的XMM RGS光谱中的隐藏冷却流（HCF）。在这里，我们在更广泛的对象样本中搜索它们：X射线最亮组NGC5044； 4中等X射线光度簇刻有刻有159，A262，A2052和RXJ0821；和3个高X射线光度簇RXJ1532，MacS 1931和Phoenix群集。最后，我们检查了两个处女座椭圆星系M49和M84。从统计学上讲，所有这些都允许添加HCF。我们发现在6个簇和2个椭圆星系中对HCF的显着检测。对于正常簇，隐藏的质量冷却速率为每年5至40个太阳能，极端簇每年1000个太阳能块，椭圆星系每年1至2个太阳能团块。我们讨论了结果对大型宿主星系最内向部分组成的含义，并期待将来的观察结果。
We have recently uncovered Hidden Cooling Flows (HCFs) in the XMM RGS spectra of 3 clusters of galaxies, Centaurus, Perseus and A1835. Here we search for them in a wider sample of objects: the X-ray brightest group NGC5044; 4 moderate X-ray luminosity clusters Sersic 159, A262, A2052 and RXJ0821; and 3 high X-ray luminosity clusters RXJ1532, MACS 1931 and the Phoenix cluster. Finally we examine two Virgo elliptical galaxies, M49 and M84. All statistically allow the addition of an HCF. We find a significant detection of an HCF in 6 clusters and 2 elliptical galaxies. The hidden mass cooling rates are 5 to 40 Solar masses per year for the normal clusters, 1000 Solar masses per year or more for the extreme clusters and 1 to 2 Solar masses per year for the elliptical galaxies. We discuss the implications of the results for the composition of the innermost parts of the massive host galaxies and look forward to future observations.
