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astro-ph2004
Strong lensing constraints on the properties of cluster galaxies
Liliya L. R. Williams, Prasenjit Saha
A recently discovered quadruply-imaged QSO, SDSS J1004+4112 (Inada et al. 2003; Oguri et al. 2004) in the core of a galaxy cluster has an unprecedented image separation of…
astro-ph2004
The phase-space density distribution of dark matter halos
Liliya L. R. Williams, Crystal Austin, Eric Barnes +2
High resolution N-body simulations have all but converged on a common empirical form for the shape of the density profiles of halos, but the full understanding of the underlying ph…