Results 11 to 20 of about 176,413 (293)
Primordial black hole reheating [PDF]
Physical Review D, 2023 Post-inflationary reheating phase is usually said to be solely governed by the decay of coherently oscillating inflaton into radiation. In this submission, we explore a new avenue toward reheating through the evaporation of primordial black holes (PBHs).
Md Riajul Haque +3 more
semanticscholar +4 more sources
Primordial Black Holes in Phantom Cosmology [PDF]
General Relativity and Gravitation, 2009 We investigate the effects of accretion of phantom energy onto primordial black holes. Since Hawking radiation and phantom energy accretion contribute to a {\it decrease} of the mass of the black hole, the primordial black hole that would be expected to ...
Jamil, Mubasher, Qadir, Asghar
core +5 more sources
Primordial Rotating Black Holes [PDF]
Physical Review D, 2020 7 pages, PRD ...
J. A. de Freitas Pacheco, Joseph Silk
openalex +4 more sources
Shining primordial black holes [PDF]
Physical Review D, 2021 11 pages, 8 figures.
Hertzberg, Mark P. +4 more
openaire +4 more sources
Extreme primordial black holes [PDF]
Astronomische Nachrichten, 2021 AbstractWe present a formalism for calculating the probability distribution of the most massive primordial black holes (PBHs) expected within an observational volume. We show how current observational upper bounds on the fraction of PBHs in dark matter translate to constraints on extreme masses of primordial black holes. We demonstrate the power of our
Chongchitnan, Siri +2 more
openaire +2 more sources
Gravitational Waves from the Merger of Two Primordial Black Hole Clusters [PDF]
Symmetry, 2023 The orbital evolution of a binary system consisting of two primordial black hole clusters is investigated. Such clusters are predicted in some theoretical models with broken symmetry in the inflation Lagrangian.
Y. Eroshenko, V. Stasenko
semanticscholar +1 more source
Constraints on primordial black holes [PDF]
Reports on Progress in Physics, 2021 Abstract We update the constraints on the fraction of the Universe that may have gone into primordial black holes (PBHs) over the mass range 10 −5 to 10 50 g.
Bernard Carr +3 more
openaire +3 more sources
Updated constraints on primordial black hole evaporation [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 The Hawking evaporation process, leading to the production of detectable particle species, constrains the abundance of light black holes, presumably of primordial origin.
Mrunal Korwar, S. Profumo
semanticscholar +1 more source
Primordial magnetic field generation via primordial black hole disks [PDF]
, 2023 Large scale primordial magnetic fields (PMFs) threading the intergalactic medium are observed ubiquitously in the Universe playing a key role in the cosmic evolution. Their origin is still debated constituting a very active field of research.
T. Papanikolaou, K. Gourgouliatos
semanticscholar +1 more source
Hunt for light primordial black hole dark matter with ultrahigh-frequency gravitational waves [PDF]
Physical Review D, 2022 : Light primordial black holes may comprise a dominant fraction of the dark matter in our Universe. This paper critically assesses whether planned and future gravitational wave detectors in the ultra-high-frequency band could constrain the fraction of ...
G. Franciolini +2 more
semanticscholar +1 more source