Abstract
We consider the possibility that massive primordial black holes are the dominant form of dark matter. Black hole formation adds a Poisson noise to the matter density fluctuations. We use Lyα forest observations to constrain this Poisson term, which constrains the black hole masses to be less than approximately a few times 104 M⊙. We also find that structures with less than ∼103 black holes evaporate by now.
Original language | English (US) |
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Pages (from-to) | L71-L74 |
Journal | Astrophysical Journal |
Volume | 594 |
Issue number | 2 II |
DOIs | |
State | Published - Sep 10 2003 |
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
Keywords
- Black hole physics
- Cosmology: observations
- Cosmology: theory
- Dark matter
- Large-scale structure of universe
- Quasars: absorption lines