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Gravitational waves from Population III binary black holes are consistent with LIGO/Virgo O3a data for the chirp mass larger than $\sim 20M_{\odot}$
- Publication Year :
- 2021
- Publisher :
- arXiv, 2021.
-
Abstract
- The probability number distribution function of binary black hole mergers observed by LIGO/Virgo O3a has double peaks as a function of chirp mass $M_c$, total mass $M_t$, primary black hole mass $M_1$ and secondary one $M_2$, respectively. The larger chirp mass peak is at $M_c \cong 30 M_{\odot}$. The distribution of $M_2$ vs. $M_1$ follows the relation of $M_2\cong 0.7M_1$. For initial mass functions of Population III stars in the form of $f(M) \propto M^{-\alpha}$, population synthesis numerical simulations with $0\leq \alpha \leq 1.5$ are consistent with O3a data for $M_c \gtrsim 20M_{\odot}$. The distribution of $M_2$ vs. $M_1$ for simulation data also agrees with $M_2\cong 0.7M_1$ relation of O3a data.<br />Comment: published in MNRAS Letter
- Subjects :
- Physics
High Energy Astrophysical Phenomena (astro-ph.HE)
education.field_of_study
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Gravitational wave
Metallicity
Population
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology (gr-qc)
General Relativity and Quantum Cosmology
LIGO
Black hole
Distribution (mathematics)
Distribution function
Binary black hole
Space and Planetary Science
Astrophysics - High Energy Astrophysical Phenomena
education
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....aa8b8a6265fad2a3ab94bc8d95f9d33a
- Full Text :
- https://doi.org/10.48550/arxiv.2103.00797