TY - JOUR

T1 - Globular cluster seeding by primordial black hole population

AU - Dolgov, A.

AU - Postnov, K.

PY - 2017/4/20

Y1 - 2017/4/20

N2 - Primordial black holes (PBHs) that form in the early Universe in the modified Affleck-Dine (AD) mechanism of baryogenesis should have intrinsic log-normal mass distribution of PBHs. We show that the parameters of this distribution adjusted to provide the required spatial density of massive seeds (≥ 104 Mo) for early galaxy formation and not violating the dark matter density constraints, predict the existence of the population of intermediate-mass PBHs with a number density of 0∼ 100 Mpc-3. We argue that the population of intermediate-mass AD PBHs can also seed the formation of globular clusters in galaxies. In this scenario, each globular cluster should host an intermediate-mass black hole with a mass of a few thousand solar masses, and should not obligatorily be immersed in a massive dark matter halo.

AB - Primordial black holes (PBHs) that form in the early Universe in the modified Affleck-Dine (AD) mechanism of baryogenesis should have intrinsic log-normal mass distribution of PBHs. We show that the parameters of this distribution adjusted to provide the required spatial density of massive seeds (≥ 104 Mo) for early galaxy formation and not violating the dark matter density constraints, predict the existence of the population of intermediate-mass PBHs with a number density of 0∼ 100 Mpc-3. We argue that the population of intermediate-mass AD PBHs can also seed the formation of globular clusters in galaxies. In this scenario, each globular cluster should host an intermediate-mass black hole with a mass of a few thousand solar masses, and should not obligatorily be immersed in a massive dark matter halo.

KW - dwarfs galaxies

KW - massive black holes

KW - primordial black holes

KW - ORIGIN

KW - TO-LIGHT RATIOS

KW - DARK-MATTER

KW - CONSTRAINTS

KW - ANTIMATTER

KW - GALAXIES

UR - http://www.scopus.com/inward/record.url?scp=85019469421&partnerID=8YFLogxK

U2 - 10.1088/1475-7516/2017/04/036

DO - 10.1088/1475-7516/2017/04/036

M3 - Article

AN - SCOPUS:85019469421

VL - 2017

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

SN - 1475-7516

IS - 4

M1 - 036

ER -