On the X-ray emission of elliptical galaxies and the determination of their masses

Details On the X-ray emission of elliptical galaxies and the determination of their masses On the X-ray emission of elliptical galaxies and the determination of their masses

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985afz....23..227k&link_type=abstract

(Astrofizika, vol. 23, Sept.-Oct. 1985, p. 227-235) Astrophysics (ISSN 0571-7132), vol. 23, no. 2, March 1986, p. 499-504. Trans

Astronomy and Astrophysics

Astrophysics

1

Elliptical Galaxies, Galactic Clusters, Galactic Structure, Mass Distribution, X Ray Sources, Brightness Distribution, Interstellar Gas, Luminosity, X Ray Spectra

Scientific paper

X-ray emission of elliptical galaxies which are members of a cluster or a separate group of galaxies is studied. Analytical expressions for the X-ray spectrum, luminosity and surface brightness are obtained in case when temperature and density of the radiative hot gas behave as T = T0(r/r0)p, ρ = ρ0(r/r0)s. The analytical expression for the total mass of elliptical galaxies including the invisible component is also obtained on the assumption of hydrostatic equilibrium in the gravitational potential field of the galaxy.

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