New data on young and old black holes and other unexpected creatures

Abstract

A review on recent astronomical observations indicating to unexpectedly abundant population of the contemporary and $z\sim 10$ 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.

arXiv comment16 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

References in corpus (14)

• An 800-million-solar-mass black hole in a significantly neutral Universe at redshift 7.5
• Density Perturbations and Black Hole Formation in Hybrid Inflation
• Rapid growth of high redshift black holes
• Intermediate-mass black holes in dwarf galaxies out to redshift $\sim$ 2.4 in the Chandra COSMOS Legacy Survey
• The Initial Spin Probability Distribution of Primordial Black Holes
• The dust mass in z > 6 normal star forming galaxies
• Inhomogeneous baryogenesis, cosmic antimatter, and dark matter
• Gaia DR2 in 6D: Searching for the fastest stars in the Galaxy
• Antimatter and antistars in the universe and in the Galaxy
• A Uniformly Selected Sample of Low-Mass Black Holes in Seyfert 1 Galaxies. II. The SDSS DR7 Sample
• SDSS J1056+5516: A Triple AGN or an SMBH Recoil Candidate?
• The sudden appearance of dust in the early Universe
• A hyper-runaway white dwarf in Gaia DR2 as a Type Iax supernova primary remnant candidate
• Massive primordial black holes in contemporary universe

Cited by in corpus (1)

• Extreme Primordial Black Holes