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Inflation and the dwarf galaxy problem

Jun'ichi Yokoyama
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Abstract

Cosmological N-body simulations with scale-invariant initial perturbations show too many virialized objects of dwarf-galaxy masses in a typical galactic halo in contradiction to observation and stability of galactic discs. We present a model of double hybrid inflation which predicts density fluctuations with a small-scale cutoff to account for the absence of these objects in observations.

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Jun'ichi Yokoyama. 2000-09-08. Inflation and the dwarf galaxy problem. https://doi.org/10.1103/physrevd.62.123509

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