Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ssrv...40..689r&link_type=abstract
(ESA, ESLAB Symposium on X-Ray Astronomy in the EXOSAT Era, 18th, The Hague, Netherlands, Nov. 5-9, 1984) Space Science Reviews
Astronomy and Astrophysics
Astrophysics
Galactic Clusters, Interstellar Gas, Iron, Mass Distribution, Missing Mass (Astrophysics), Stellar Mass, Density Distribution, Gas Temperature, Luminosity
Scientific paper
In galaxy clusters, the iron mass contained in the gas seems proportional to the virial mass. The authors proposed that this virial mass is made of stars and/or star remnants which produced the iron in the past. In this paper the authors examine the dynamical behaviour of clusters in which the bulk of the missing mass is made of such objects. They show that the relaxation due to distant encounters between galaxies and these background objects permit to explain the observed relationships between the central galaxy densities and both the total optical luminosities and the galaxy mean velocities.
Arnaud Monique
Rothenflug R.
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