The stage of superheavy particle dominance in the universe and primordial black holes
Abstract
The stage of nonrelativistic superheavy particle dominance in the early universe is predicted within the frame of grand unified theories of elementary particles. The minimal probability of primordial black hole (PBH) formation at this stage is estimated and compared with the astrophysical upper limits on the PBH density. Astrophysical constraints on grand unified theories are obtained.
- Publication:
-
Astronomicheskii Zhurnal
- Pub Date:
- August 1981
- Bibcode:
- 1981AZh....58..706P
- Keywords:
-
- Astrophysics;
- Black Holes (Astronomy);
- Cosmology;
- Elementary Particles;
- Particle Mass;
- Universe;
- Density Wave Model;
- Gravitational Effects;
- Monopoles;
- Neutrinos;
- Perturbation Theory;
- Probability Theory;
- Relic Radiation;
- Stellar Evolution;
- Stellar Spectra;
- Astrophysics