TY - JOUR
T1 - Spinning primordial black holes formed during a matter-dominated era
AU - de Jong, Eloy
AU - Aurrekoetxea, Josu C.
AU - Lim, Eugene A.
AU - França, Tiago
N1 - Publisher Copyright:
© 2023 Institute of Physics Publishing. All rights reserved.
PY - 2023/10/1
Y1 - 2023/10/1
N2 - We study the formation of spinning primordial black holes during an early matter-dominated era. Using non-linear 3+1D general relativistic simulations, we compute the efficiency of mass and angular momentum transfer in the process, which we find to be O(10%) and O(5%), respectively. We show that subsequent evolution is important due to the seed PBH accreting non-rotating matter from the background, which decreases the dimensionless spin. Unless the matter era is short, we argue that the final dimensionless spin will be negligible.
AB - We study the formation of spinning primordial black holes during an early matter-dominated era. Using non-linear 3+1D general relativistic simulations, we compute the efficiency of mass and angular momentum transfer in the process, which we find to be O(10%) and O(5%), respectively. We show that subsequent evolution is important due to the seed PBH accreting non-rotating matter from the background, which decreases the dimensionless spin. Unless the matter era is short, we argue that the final dimensionless spin will be negligible.
KW - GR black holes
KW - physics of the early universe
KW - primordial black holes
UR - http://www.scopus.com/inward/record.url?scp=85176467994&partnerID=8YFLogxK
U2 - 10.1088/1475-7516/2023/10/067
DO - 10.1088/1475-7516/2023/10/067
M3 - Article
AN - SCOPUS:85176467994
SN - 1475-7516
VL - 2023
JO - Journal of Cosmology and Astroparticle Physics
JF - Journal of Cosmology and Astroparticle Physics
IS - 10
M1 - 067
ER -