Recognition: unknown
The spherical collapse model in a universe with cosmological constant
classification
🌌 astro-ph
keywords
collapseconstantcosmologicalmodelsphericaluniverseapplyarbitrary
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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 condition for collapse of an overdense region and give exact values of the characteristic densities and redshifts of its evolution.
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