Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.235..315t&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 235, Nov. 15, 1988, p. 315-341. NSERC-SERC-supported re
Astronomy and Astrophysics
Astrophysics
35
Cooling Flows (Astrophysics), Euler-Lagrange Equation, Galactic Clusters, Multiphase Flow, Astronomical Models, Density Distribution, Emission Spectra, Flow Distribution, Galactic Evolution, Time Dependence
Scientific paper
The intracluster medium in clusters of galaxies which contain cooling flows is multiphase with a range of densities on small scales. A simple, source-free Lagrangian model has been developed to study the development of density distributions in the cooling gas. Initially narrow distributions tend towards a universal form as they cool which gives mass deposition profiles in agreement with the observations. Time-dependent models of collapsing inhomogeneous gas clouds suggest that cooling flows play little part in the formation of low-mass galaxies, although infall at later stages can have an effect on the structure of the core. They can play an important role, however, in the formation of higher mass systems. The balance of cooling and inflow in a cooling flow can deposit matter in an extended exp-2 profile resembling that of a massive halo.
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