Unveiling the Galaxy Cluster - Cosmic Web Connection with X-ray observations in the Next Decade
Abstract
In recent years, the outskirts of galaxy clusters have emerged as one of the new frontiers and unique laboratories for studying the growth of large scale structure in the universe. Modern cosmological hydrodynamical simulations make firm and testable predictions of the thermodynamic and chemical evolution of the X-ray emitting intracluster medium. However, recent X-ray and Sunyaev-Zeldovich effect observations have revealed enigmatic disagreements with theoretical predictions, which have motivated deeper investigations of a plethora of astrophysical processes operating in the virialization region in the cluster outskirts. Much of the physics of cluster outskirts is fundamentally different from that of cluster cores, which has been the main focus of X-ray cluster science over the past several decades. A next-generation X-ray telescope, equipped with sub-arcsecond spatial resolution over a large field of view along with a low and stable instrumental background, is required in order to reveal the full story of the growth of galaxy clusters and the cosmic web and their applications for cosmology.
Keywords
Cite
@article{arxiv.1903.04550,
title = {Unveiling the Galaxy Cluster - Cosmic Web Connection with X-ray observations in the Next Decade},
author = {Stephen A. Walker and Daisuke Nagai and A. Simionescu and M. Markevitch and H. Akamatsu and M. Arnaud and C. Avestruz and M. Bautz and V. Biffi and S. Borgani and E. Bulbul and E. Churazov and K. Dolag and D. Eckert and S. Ettori and Y. Fujita and M. Gaspari and V. Ghirardini and R. Kraft and E. T. Lau and A. Mantz and K. Matsushita and M. McDonald and E. Miller and T. Mroczkowski and P. Nulsen and N. Okabe and N. Ota and E. Pointecouteau and G. Pratt and K. Sato and X. Shi and G. Tremblay and M. Tremmel and F. Vazza and I. Zhuravleva and E. Zinger and J. ZuHone},
journal= {arXiv preprint arXiv:1903.04550},
year = {2019}
}
Comments
10 pages, 3 figures, Science white paper submitted to the Astro2020 Decadal Survey