Answer to Question #89693 in Astronomy | Astrophysics for Sakshi

Question #89693
Explain why we expect the gas is elliptical galaxies to be hot ?for 5 marks
1
Expert's answer
2019-05-14T10:22:58-0400

There are two main sources of hot gas in elliptical galaxies: internal and external. Evolving stars inside the elliptical galaxy continuously eject gas at a rate. It is generally assumed that gas ejected by or-biting red giant stars passes through shocks and is raised to the stellar kinematic temperature where is the molecular weight and is the stellar velocity dispersion.


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