Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.228..973t&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 228, Oct. 15, 1987, p. 973-991. Research supported by t
Astronomy and Astrophysics
Astronomy
170
Galactic Clusters, Gas Cooling, Interstellar Matter, Mass Distribution, X Ray Astronomy, Density Distribution, Gas Flow, Temperature Profiles
Scientific paper
A 'multiphase method' for the analysis of X-ray data of the cooling inflow region of intracluster gas in clusters of galaxies is presented. The method employs a range of densities at each radius and treats the mass-deposition from the flow in a self-consistent way. Good agreement is found between results from this multiphase method and those obtained with a previous, single-phase approach which assumed only one characteristic density at each radius. For the best data-sets, the density distribution of the various phases agrees with theoretical expectations only if a massive halo is added to the gravitational potential of the central galaxy. Mass deposition profiles of those clusters for which the method is applicable are presented. These rise linearly with radius and reach values of up to 100 solar masses/year within 100 kpc.
Fabian Andrea C.
Nulsen Paul E. J.
Thomas Peter A.
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