TY - JOUR

T1 - Spins of primordial binary black holes before coalescence

AU - Postnov, K. A.

AU - Mitichkin, N. A.

N1 - Publisher Copyright: © 2019 IOP Publishing Ltd and Sissa Medialab.

PY - 2019/6/20

Y1 - 2019/6/20

N2 - Primordial stellar-mass black holes, which may contribute to dark matter and to the observed LIGO binary black hole coalescences, are expected to be born with very low spins. Here we show that accretion mass gain by the components of a primordial black hole binary from the surrounding matter could lead to noticeable spins of the components prior to the coalescence provided high initial orbital eccentricities.

AB - Primordial stellar-mass black holes, which may contribute to dark matter and to the observed LIGO binary black hole coalescences, are expected to be born with very low spins. Here we show that accretion mass gain by the components of a primordial black hole binary from the surrounding matter could lead to noticeable spins of the components prior to the coalescence provided high initial orbital eccentricities.

KW - Astrophysical black holes

KW - GR black holes

UR - http://www.scopus.com/inward/record.url?scp=85069448413&partnerID=8YFLogxK

U2 - 10.1088/1475-7516/2019/06/044

DO - 10.1088/1475-7516/2019/06/044

M3 - Article

AN - SCOPUS:85069448413

VL - 2019

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

SN - 1475-7516

IS - 6

M1 - 44

ER -