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Evolution of Gas in Elliptical Galaxies
William G. Mathews, Fabrizio Brighenti
We review the origin and structure of hot (cooling flow) gas in elliptical galaxies. X-ray observations can be used to determine the stellar mass to light ratio, the mass profiles…
Influence of Cooled Interstellar Gas on the Fundamental Plane for Elliptical Galaxies
William G. Mathews, Fabrizio Brighenti
We explore the possibly important influence of cooled interstellar gas on the fundamental plane of elliptical galaxies. Interstellar cooling is described by a parameterized sink te…
Why Are Rotating Elliptical Galaxies Less Elliptical at X-ray Frequencies?
Fabrizio Brighenti, William G. Mathews
If mass and angular momentum were conserved in cooling flows associated with luminous, slowly rotating elliptical galaxies, the inflowing hot gas would spin up, resulting in disks…
Where Do Cooling Flows Cool?
Fabrizio Brighenti, William G. Mathews
Although only about 5 percent of the total baryonic mass in luminous elliptical galaxies is in the form of cooled interstellar gas, it is concentrated within the optical effective…