scholarly journals Fast radio bursts from primordial black hole binaries coalescence

2018 ◽  
Vol 98 (12) ◽  
Author(s):  
Can-Min Deng ◽  
Yifu Cai ◽  
Xue-Feng Wu ◽  
En-Wei Liang
Keyword(s):  
Black Hole ◽  
Primordial Black Hole ◽  
Radio Bursts ◽  
Black Hole Binaries

scholarly journals Cosmological black holes are not described by the Thakurta metric: LIGO-Virgo bounds on PBHs remain unchanged

2021 ◽  
Vol 81 (11) ◽  
Author(s):  
Gert Hütsi ◽  
Tomi Koivisto ◽  
Martti Raidal ◽  
Ville Vaskonen ◽  
Hardi Veermäe
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Dark Matter ◽  
Compact Object ◽  
Compact Objects ◽  
Primordial Black Hole ◽  
Mass Growth ◽  
Black Hole Binaries ◽  
Physical Conditions ◽  
Accretion Physics

AbstractWe show that the physical conditions which induce the Thakurta metric, recently studied by Bœhm et al. in the context of time-dependent black hole masses, correspond to a single accreting compact object in the entire Universe filled with isotropic non-interacting dust. In such a case, accretion physics is not local but tied to the properties of the whole Universe. We show that radiation, primordial black holes or particle dark matter cannot produce the specific energy flux required for supporting the mass growth of the compact objects described by the Thakurta metric. In particular, this solution does not apply to black hole binaries. We conclude that compact dark matter candidates and their mass growth cannot be described by the Thakurta metric, and thus existing constraints on the primordial black hole abundance from the LIGO-Virgo and the CMB measurements remain valid.

scholarly journals Prospects for probing gravitational waves from primordial black hole binaries

2021 ◽  
Vol 104 (8) ◽  
Author(s):  
Oriol Pujolas ◽  
Ville Vaskonen ◽  
Hardi Veermäe
Keyword(s):  
Black Hole ◽  
Gravitational Waves ◽  
Primordial Black Hole ◽  
Black Hole Binaries

scholarly journals Orbital eccentricities in primordial black hole binaries

2016 ◽  
Vol 94 (8) ◽  
Author(s):  
Ilias Cholis ◽  
Ely D. Kovetz ◽  
Yacine Ali-Haïmoud ◽  
Simeon Bird ◽  
Marc Kamionkowski ◽  
...  
Keyword(s):  
Black Hole ◽  
Primordial Black Hole ◽  
Black Hole Binaries
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