arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.00506astro-ph.COastro-ph.GA
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银河系弱透镜

Cluster-galaxy weak lensing

Keiichi Umetsu

摘要:

背景星系的弱引力透镜提供了一个直接探测星系团内部和周围投射物质分布的方法。在这里,我们提出了一个自成一体的教学审查集群-星系弱透镜,涵盖了一系列的主题相关的宇宙学和天体物理学的应用。我们首先从第一性原理回顾引力透镜的理论基础,特别注意弱引力透镜的基础和先进技术。我们总结和讨论的关键发现,从最近的集群-星系弱透镜的研究在观测和理论的基础上,集中在集群质量配置文件,浓度-质量关系,回溅半径,并从广泛的质量校准努力集群宇宙学的影响。

英文摘要:

Weak gravitational lensing of background galaxies provides a direct probe of the projected matter distribution in and around galaxy clusters. Here we present a self-contained pedagogical review of cluster--galaxy weak lensing, covering a range of topics relevant to its cosmological and astrophysical applications. We begin by reviewing the theoretical foundations of gravitational lensing from first principles, with special attention to the basics and advanced techniques of weak gravitational lensing. We summarize and discuss key findings from recent cluster--galaxy weak-lensing studies on both observational and theoretical grounds, with a focus on cluster mass profiles, the concentration--mass relation, the splashback radius, and implications from extensive mass calibration efforts for cluster cosmology.

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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