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arXiv 1305.3286astro-ph.CO
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星系团的标度关系:性质和演化

Scaling relations for galaxy clusters: properties and evolution

S. Giodini, L. Lovisari, E. Pointecouteau, S. Ettori, T. H. Reiprich, H. Hoekstra

摘要:

在星系团的可观测性质和总质量之间,校准良好的标度关系对于理解产生这些关系的物理过程非常重要。它们也是旨在利用星系团限制宇宙学参数的研究的关键成分。出于这个原因,在过去的十年中,已经花费了大量的努力,以更好地理解和解释集群内介质的属性的关系。改进的X射线数据已经将质量范围扩大到星系群,而SZ调查为星系团内介质打开了一个新的观测窗口。此外,在宇宙学模拟方面的持续进展使人们能够更好地了解影响观测到的标度关系的物理过程和选择效应。在这里,我们回顾了最近的文献中的各种标度关系,集中在最新的观测测量和进展,我们的理解偏离自相似性。

英文摘要:

Well-calibrated scaling relations between the observable properties and the total masses of clusters of galaxies are important for understanding the physical processes that give rise to these relations. They are also a critical ingredient for studies that aim to constrain cosmological parameters using galaxy clusters. For this reason much effort has been spent during the last decade to better understand and interpret relations of the properties of the intra-cluster medium. Improved X-ray data have expanded the mass range down to galaxy groups, whereas SZ surveys have openened a new observational window on the intracluster medium. In addition,continued progress in the performance of cosmological simulations has allowed a better understanding of the physical processes and selection effects affecting the observed scaling relations. Here we review the recent literature on various scaling relations, focussing on the latest observational measurements and the progress in our understanding of the deviations from self similarity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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