Cosmological Constraints from Primordial Black Holes

Abstract

Primordial black holes may form in the early Universe, for example from the collapse of large amplitude density perturbations predicted in some inflationary models. Light black holes undergo Hawking evaporation, the energy injection from which is constrained both at the epoch of nucleosynthesis and at the present. The failure as yet to unambiguously detect primordial black holes places important constraints. In this article, we are particularly concerned with the dependence of these constraints on the model for the complete cosmological history, from the time of formation to the present. Black holes presently give the strongest constraint on the spectral index $n$ of density perturbations, though this constraint does require $n$ to be constant over a very wide range of scales.

8 pages LaTeX file, using elsart.sty, with three figures incorporated using epsf. To appear, proceedings of DM98, Los Angeles (ed D Cline, Elsevier)

References in corpus (1)

• Black holes and gravitational waves in string cosmology

Cited by in corpus (22)

• The cosmological gravitational wave background from primordial density perturbations
• Primordial Black Holes
• Dynamics of Primordial Black Hole Formation
• Computations of primordial black hole formation
• Could supermassive black holes be quintessential primordial black holes?
• Gravitino production by primordial black hole evaporation and constraints on the inhomogeneity of the early Universe
• Fundamental Particle Structure in the Cosmological Dark Matter
• Stringy Effects During Inflation and Reheating
• Domination of black hole accretion in brane cosmology
• Precision Calculation of Dark Radiation from Spinning Primordial Black Holes and Early Matter Dominated Eras
• Constraints on Primordial Black Holes by Distortions of Cosmic Microwave Background
• Probability of primordial black hole formation and its dependence on the radial profile of initial configurations
• Signals of primordial black holes at gravitational wave interferometers
• Recombining WMAP: constraints on ionizing and resonance radiation at recombination
• Delayed Recombination and Cosmic Parameters
• Black Hole Relics in Large Extra Dimensions
• Evolution of primordial black holes in Jordan-Brans-Dicke cosmology
• Brane Inflation, Solitons and Cosmological Solutions: I
• Cosmological Probes for Supersymmetry
• Bounds on the cosmological abundance of primordial black holes from diffuse sky brightness: single mass spectra
• Gravitational measurements in higher dimensions
• Holographic Principle bounds on Primordial Black Hole abundances