Abstract
Abstract
The LIGO-Virgo Collaboration has so far detected around 90
black holes, some of which have masses larger than what were
expected from the collapse of stars. The mass distribution of
LIGO-Virgo black holes appears to have a peak at ∼ 30M
☉
and two tails on the ends. By assuming that they all have a
primordial origin, we analyze the GWTC-1 (O1&O2) and GWTC-2 (O3a)
datasets by performing maximum likelihood estimation on a broken
power law mass function f(m), with the result f ∝ m
1.2
for m < 35 M
☉ and f ∝ m
-4 for m > 35 M
☉. This
appears to behave better than the popular log-normal mass
function. Surprisingly, such a simple and unique distribution can be
realized in our previously proposed mechanism of PBH formation,
where the black holes are formed by vacuum bubbles that nucleate
during inflation via quantum tunneling. Moreover, this mass
distribution can also provide an explanation to supermassive black
holes formed at high redshifts.
Subject
Astronomy and Astrophysics
Reference67 articles.
1. GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs;Abbott;Phys. Rev. X,2019
2. GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run;Abbott,2020
3. Joint constraints on the field-cluster mixing fraction, common envelope efficiency, and globular cluster radii from a population of binary hole mergers via deep learning;Wong,2020
4. One Channel to Rule Them All? Constraining the Origins of Binary Black Holes using Multiple Formation Pathways;Zevin;Astrophys. J.,2021
5. The Observed Rate of Binary Black Hole Mergers can be Entirely Explained by Globular Clusters;Rodriguez;Res. Notes AAS,2021
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