Might Dark Matter be Actually Black?

Details Might Dark Matter be Actually Black? Might Dark Matter be Actually Black?

2003-03-15

arxiv.org/abs/astro-ph/0303349v2

Astronomy and Astrophysics

Astrophysics

Scientific paper

There have been proposals that primordial black hole remnants (BHRs) are the dark matter, but the idea is somewhat vague. We argue here first that the generalized uncertainty principle (GUP) may prevent black holes from evaporating completely, in a similar way that the standard uncertainty principle prevents the hydrogen atom from collapsing. Secondly we note that the hybrid inflation model provides a plausible mechanism for production of large numbers of small black holes. Combining these we suggest that the dark matter might be composed of Planck-size BHRs and discuss the possible constraints and signatures associated with this notion.

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