Primordial black hole formation from an axion-like curvaton model

Abstract

We argue that the existence of the cold dark matter is explained by primordial black holes.We show that a significant number of primordial black holes can be formed in an axion-like curvaton model, in which the highly blue-tilted power spectrum of primordial curvature perturbations is achieved.It is found that the produced black holes with masses $\sim 10^{20}-10^{38}\mathrm{g}$ account for the present cold dark matter.We also argue the possibility of forming the primordial black holes with mass $\sim 10^5{M}_{\odot }$ as seeds of the supermassive black holes.

18 pages, 9 figures

References in corpus (5)

• Primordial seeds of supermassive black holes
• Black hole formation and slow-roll inflation
• Supermassive black holes from primordial black hole seeds
• Axion isocurvature fluctuations with extremely blue spectrum
• Formation of intermediate-mass black holes as primordial black holes in the inflationary cosmology with running spectral index

Cited by in corpus (10)

• Primordial Black Holes as Dark Matter
• CMB bounds on disk-accreting massive Primordial Black Holes
• Gravitational Waves Induced by Scalar Perturbations with a Lognormal Peak
• Testing scenarios of primordial black holes being the seeds of supermassive black holes by ultracompact minihalos and CMB $\mu$-distortions
• Primordial black holes from inflaton and spectator field perturbations in a matter-dominated era
• Supermassive black holes formed by direct collapse of inflationary perturbations
• Pulsar timing can constrain primordial black holes in the LIGO mass window
• The double formation of primordial black holes
• Mass bound for primordial black hole from trans-Planckian censorship conjecture
• Primordial black holes from temporally enhanced curvature perturbation