Abstract
view Abstract Citations (74) References (32) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Radiative accretion of intracluster gas onto dominant galaxies in poor clusters. Canizares, C. R. ; Stewart, G. C. ; Fabian, A. C. Abstract An analysis of X-ray images of MKW 4, MKW 3, AMW 4, and AMW 7 indicates that the hot gas in poor clusters is cooling and accreting onto the central, dominant galaxies. The deprojection technique of Fabian et al (1980) is applied to deduce the detailed density and temperature profiles for a wide range of assumed parameters. For each cluster, the mass accretion rates computed vary by less than a factor of 2 over the full range of the assumed parameters. Examinations of the gas and light density profiles, and of the effects of contraction of the gravitational potential, lead to the conclusion that the high gas densities giving rise to cooling flows are not primarily the result of dynamical evolution of the cluster, especially the merger of galaxies to form the dominant galaxy. Instead, the general initial condition of high material density favors both mergers and cooling flows. Publication: The Astrophysical Journal Pub Date: September 1983 DOI: 10.1086/161312 Bibcode: 1983ApJ...272..449C Keywords: Cooling Flows (Astrophysics); Galactic Clusters; Interstellar Gas; X Ray Sources; Brightness Distribution; Density (Mass/Volume); Radiative Transfer; Temperature Profiles; X Ray Imagery; Astrophysics full text sources ADS | data products SIMBAD (8) NED (4)
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call