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- Title
Primordial black hole collision with neutron stars and astrophysical black holes and the observational signatures.
- Authors
Rahvar, Sohrab
- Abstract
In this paper, we examine whether low-mass Primordial Black Holes (PBHs) can be considered a plausible dark matter candidate in galactic halos. We derive the relativistic dynamics of PBHs around the heavy compact objects and evaluate their collision rate, as well as the likelihood of PBH capture in neutron stars and black holes. Although the rate of these collisions in the Milky Way is lower than our lifetime (i.e. almost one collision per hundred years), it may still be observable on cosmological scales. Additionally, we investigate the gravitational wave emission as an important observable window for PBH-astrophysical black hole merging. For the allowed range of PBH mass, gravitational wave signal is smaller than the sensitivity of present gravitational wave detectors. We provide observational prospect for detection of these events in future.
- Subjects
BLACK holes; STELLAR collisions; GRAVITATIONAL wave detectors; GALACTIC halos; DARK matter; STELLAR dynamics
- Publication
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2023, Vol 32, Issue 16, p1
- ISSN
0218-2718
- Publication type
Article
- DOI
10.1142/S0218271823501031