X射線冷核星系團(tuán)研究進(jìn)展
[Abstract]:Cold nuclei are low-temperature bright nuclei that appear in some X-ray clusters. The surface brightness profile, temperature profile, central cooling time, mass deposition rate and entropy profile of the cold nuclear cluster are quite different from those of the non-cold nuclear cluster in many aspects, such as the brightness profile, the temperature profile, the central cooling time, the mass deposition rate and the entropy profile of the cold nuclear cluster. It has been 40 years since the discovery of cold nucleus in cluster. People's understanding of cold nucleus has gone through the transformation from cold flow model to stable cold core model. However, until now, the mechanism and maintenance conditions of cold nuclei have not been fully understood. It is of great significance to study the cold nucleus in many fields, such as the productivity mechanism of active galactic nucleus, the enrichment process of intergalactic elements, the formation and evolution of cluster, the formation of large-scale structure and so on.
【作者單位】: 北京師范大學(xué)天文系;
【基金】:973計(jì)劃(2012CB821804) 中央高;究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金 北京師范大學(xué)自主科研基金
【分類號(hào)】:P157.8
【共引文獻(xiàn)】
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1 趙振煜;星系團(tuán)A2319的多色測光研究[D];南京師范大學(xué);2013年
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