2020/07/31 by Keiichi Umetsu · 1 citation
Physics and Astronomy · #astro-ph.CO #astro-ph.GA
paper · pdf · doi:10.1007/s00159-020-00129-w
published as Astron Astrophys Rev 28, 7 (2020) · Invited review article published in The Astronomy and Astrophysics Review (see https://rdcu.be/caSUp); a version that corrects references and errors introduced by the publisher during the production process; 102 pages, 30 figures
arxiv created 2020/12/14 · arxiv updated 2020/12/15
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.