Cosmological Dependence of Cluster Density Profiles

Details Cosmological Dependence of Cluster Density Profiles Cosmological Dependence of Cluster Density Profiles

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...182.3016c&link_type=abstract

American Astronomical Society, 182nd AAS Meeting, #30.16; Bulletin of the American Astronomical Society, Vol. 25, p.839

Astronomy and Astrophysics

Astronomy

Scientific paper

We report the results of a study of cluster density profiles using n-body simulations. The results for cosmologies with Omega_o = 1.0; Omega_o = 0.2; and Omega_o = 0.2, lambda_o = 0.8 are compared for initial power spectra P(k) = Ak(n) , where n = -2, -1, 0. We note distinct differences between these cosmologies and show that the Omega -dependence of the profile slope is not masked by the n-dependence. We also demonstrate the inadequacy of certain simple models, notably flat core models, in fitting the profiles.

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