325 citations · 2.8k across the 72 of their papers we have counts for
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astro-ph2000★ 20 cited
The spherical collapse model in a universe with cosmological constant
Ewa L. Lokas, Y. Hoffman
We generalize the spherical collapse model for the formation of dark matter halos to apply in a universe with arbitrary positive cosmological constant. We calculate the critical co…
astro-ph2000★ 325 cited
Properties of spherical galaxies and clusters with an NFW density profile
Ewa L. Lokas, Gary A. Mamon
Using the standard dynamical theory of spherical systems, we calculate the properties of spherical galaxies and clusters whose density profiles obey the universal form first obtain…