Solving puzzles of GW150914 by primordial black holes

By S. Blinnikov, A. Dolgov, N. Porayko, K. P. Itep, Nsu, Sai, Kavli Ipmu, MPIfRadioastronomie. 2016

141 citations recorded by the source corpus.

The black hole binary properties inferred from the LIGO gravitational wave signal GW150914 posed several serious problems. The high masses and low effective spin of black hole binary can be explained if they are primordial (PBH) rather than the products of the stellar binary evolution. Such PBH properties are postulated ad hoc but not derived from fundamental theory. We show that the necessary features of PBHs naturally follow from the slightly modified Affleck-Dine (AD) mechanism of baryogenesis. The log-normal distribution of PBHs, predicted within the AD paradigm, is adjusted to provide an abundant population of low-spin stellar mass black holes. The same distribution gives a sufficient number of quickly growing seeds of supermassive black holes observed at high redshifts and may comprise an appreciable fraction of Dark Matter which does not contradict any existing observational limits. Testable predictions of this scenario are discussed.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/34ee699c78c78c899c024963c22cb3e380cd8049

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Citations in the corpus

Primordial black holes as dark matter candidates (2021, result): “[170] that the event rate was compatible with PBH dark matter was supported by other work [220, 221] but disputed by Sasaki et al.”
Primordial Black Holes as Dark Matter: Recent Developments (2020, result): “[273] Sergei Blinnikov, Alexander Dolgov, N.”
Single field double inflation and primordial black holes (2017, background): “ation holds between the two phases of in ation, we nd upon an expansion of the power spectrum in Eq. (2.16) up to second order in lnMa lognormal shape that has been often considered in the literature [43,60{62,93,94], eq(M) ˇ pPBH;eq 2ˇ˙ exp ln2(M=M c) 2˙2 ; (4.7) where ˙= 1 c s P i 2˘ i ; PBH;eq”