Black Hole in a Radiation-Dominated Universe
We study a black hole in an expanding Universe during the radiation-dominated stage. In particular, such a black hole may be of the primordial origin. In the case when the black hole radius is much smaller than the cosmological horizon, we found a self-consistent solution for the metric and the matt...
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| Veröffentlicht in: | Astron.Lett 2018-08, Vol.44 (8-9), p.491-499 |
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| container_issue | 8-9 |
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| container_title | Astron.Lett |
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| creator | Babichev, E. O. Dokuchaev, V. I. Eroshenko, Yu. N. |
| description | We study a black hole in an expanding Universe during the radiation-dominated stage. In particular, such a black hole may be of the primordial origin. In the case when the black hole radius is much smaller than the cosmological horizon, we found a self-consistent solution for the metric and the matter distribution and its velocity far from the black hole. At distances much smaller than the cosmological horizon our solution coincides with the previously obtained solution for quasi-stationary accretion. Our results can be applied, in particular, for the formation of dark matter density spikes around primordial black holes, and for the evolution of dark matter clumps during the radiation-dominated stage. |
| doi_str_mv | 10.1134/S1063773718090013 |
| format | Article |
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| ispartof | Astron.Lett, 2018-08, Vol.44 (8-9), p.491-499 |
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| language | eng |
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| subjects | Astronomy Astrophysics Astrophysics and Astroparticles Big Bang theory Black holes Clumps Dark matter Deposition Evolution Observations and Techniques Physics Physics and Astronomy Radiation Universe |
| title | Black Hole in a Radiation-Dominated Universe |
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