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astro-ph2002
The Shapes of Galaxies in the Sloan Digital Sky Survey
S. M. Khairul Alam, Barbara S. Ryden
We estimate the distribution of apparent axis ratios for galaxies in the Sloan Digital Sky Survey (SDSS) Early Data Release. We divide the galaxies by profile type (de Vaucoule…
astro-ph2001
Dark Matter Properties and Halo Central Densities
S. M. Khairul Alam, James S. Bullock, David H. Weinberg
Using an analytic model calibrated against numerical simulations, we calculate the central densities of dark matter halos in a ``conventional'' cold dark matter model with a cosmol…