TL;DR
This paper reviews how X-ray spectroscopy reveals the physical and dynamical properties of galaxy clusters, aiding understanding of their mass structure and evolution, with insights into future observational prospects.
Contribution
It provides a comprehensive review of galaxy cluster properties derived from X-ray observations, emphasizing their thermal and dynamical evolution under equilibrium conditions.
Findings
X-ray spectroscopy offers detailed insights into intracluster gas properties.
Galaxy clusters' mass structure can be constrained through X-ray data.
Future X-ray missions will enhance understanding of cluster evolution.
Abstract
Clusters of galaxies are the most massive objects in the Universe and precise knowledge of their mass structure is important to understand the history of structure formation and constrain still unknown types of dark contents of the Universe. X-ray spectroscopy of galaxy clusters provides rich information about the physical state of hot intracluster gas and the underlying potential structure. In this paper, starting from the basic description of clusters under equilibrium conditions, we review properties of clusters revealed primarily through X-ray observations considering their thermal and dynamical evolutions. The future prospects of cluster studies using upcoming X-ray missions are also mentioned.
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