Abstract
The interstellar medium (ISM) of galaxies very often contains a gas component that reaches the temperature of several million degrees, whose physical and chemical properties can be investigated through imaging and spectroscopy in the X-rays. We review the current knowledge on the origin and retention of the hot ISM in star-forming and early-type galaxies, from a combined theoretical and observational standpoint. As a complex interplay between gravitational processes, environmental effects, and feedback mechanisms contributes to its physical conditions, the hot ISM represents a key diagnostic of the evolution of galaxies.
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CITATION STYLE
Nardini, E., Kim, D.-W., & Pellegrini, S. (2022). The Hot Interstellar Medium. In Handbook of X-ray and Gamma-ray Astrophysics (pp. 1–48). Springer Nature Singapore. https://doi.org/10.1007/978-981-16-4544-0_109-1
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