Speaker
Dr.
Yury Eroshenko
(Institute for Nuclear Research of the Russian Academy of Science)
Description
We consider some properties and possible observational manifestations of very heavy primordial black holes, with mass ~10^9-10^10 solar masses. These black holes should be surrounded by dense dark matter and barionic halos even at early cosmological epochs. The gas dynamics properties of the barions provide the mechanisms as for emission of radiation and for deep absorption at the periphery of the halos. We calculate the absorption profile in the 21 cm line of atomic hydrogen by solving the equations of radiation transfer in the barionic halo around the primordial black holes. The possible astronomical method of search for such objects are also discussed.
Primary authors
Dr.
Victor Dubrovich
(Special Astrophysical Observatory, St. Petersburg Branch, Russian Academy of Sciences)
Dr.
Yury Eroshenko
(Institute for Nuclear Research of the Russian Academy of Science)
Dr.
Sergey Grachev
(Sobolev Astronomical Institute, St. Petersburg State University)
