Inflation and the dwarf galaxy problem

Details Inflation and the dwarf galaxy problem Inflation and the dwarf galaxy problem

2000-09-08

arxiv.org/abs/astro-ph/0009127v1

Phys.Rev.D62:123509,2000

Astronomy and Astrophysics

Astrophysics

8 pages, no figure

Scientific paper

10.1103/PhysRevD.62.123509

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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