New data on young and old black holes and other unexpected creatures
arXiv:2002.10332
Abstract
A review on recent astronomical observations indicating to unexpectedly abundant population of the contemporary and universe by massive black holes in all mass ranges are is presented. It is argued that these black holes are mostly primordial. The data on some other stellar-kind objects which are also may be primordial are discussed.
16 pages, talk presented at 8th International Conference on New Frontiers in Physics 21-30 August, 2019 Conference Center of the Orthodox Academy of Creta, Crete, Greece. arXiv admin note: substantial text overlap with arXiv:1911.02382