Massive primordial black holes in contemporary universe. (arXiv:1905.10972v1 [astro-ph.CO])
<a href="http://arxiv.org/find/astro-ph/1/au:+Dolgov_A/0/1/0/all/0/1">A. D. Dolgov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Porey_S/0/1/0/all/0/1">S. Porey</a>
The parameters of the original log-normal mass spectrum of primordial black
holes (PBH) are adjusted based on the existing observational data on
supermassive black holes in the galactic centers and the mass distribution of
the near-solar mass black holes in the Galaxy. Together with the assumption
that PBHs make all or a large mass fraction of the cosmological dark matter it
allows to fix the parameters of the original mass spectrum. The predicted, in
this way, number density of MACHOs is found to be about an order of magnitude
below the observed value. Possible resolution of the controversy may be
prescribed to non-isotropic and inhomogeneous distribution of MACHOs or to the
two-maximum spectra of PBH.
The parameters of the original log-normal mass spectrum of primordial black
holes (PBH) are adjusted based on the existing observational data on
supermassive black holes in the galactic centers and the mass distribution of
the near-solar mass black holes in the Galaxy. Together with the assumption
that PBHs make all or a large mass fraction of the cosmological dark matter it
allows to fix the parameters of the original mass spectrum. The predicted, in
this way, number density of MACHOs is found to be about an order of magnitude
below the observed value. Possible resolution of the controversy may be
prescribed to non-isotropic and inhomogeneous distribution of MACHOs or to the
two-maximum spectra of PBH.
http://arxiv.org/icons/sfx.gif
