2024MNRAS.531.4725K

Query : 2024MNRAS.531.4725K

2024MNRAS.531.4725K - Mon. Not. R. Astron. Soc., 531, 4725-4733 (2024/July-2)

Mass ratio of binary black holes determined from LIGO/Virgo data restricted to small false alarm rate.

KINUGAWA T., NAKAMURA T. and NAKANO H.

Abstract (from CDS):

We focus on gravitational wave events of binary black hole mergers up to the third observing run with the minimum false alarm rate smaller than $10^{-5}\, {\rm yr}^{-1}$. These events tell us that the mass ratio of two black holes follows $m_2/m_1=0.723$ with the chance probability of 0.00301 per cent for the chirp mass $M_{\rm chirp}\,\gt 18\, {\rm M}_{\odot }$. We show that the relation of $m_2/m_1=0.723$ is consistent with the binaries originated from population III stars which are the first stars in the Universe. On the other hand, it is found for $M_{\rm chirp}\,\lt\, 18 \,{\rm M}_{\odot }$ that the mass ratio follows $m_2/m_1=0.601$ with the chance probability of 0.117 per cent if we ignore GW190412 with $m_2/m_1\sim 0.32$. This suggests a different origin from that for $M_{\rm chirp}\ \gt\ 18 \,{\rm M}_{\odot }$.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): gravitational waves - stars: population III - black hole mergers

Simbad objects: 36

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Number of rows : 36
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 GrW 190814 GWE 00 55.8 -27 05           ~ 433 0
2 GrW 170814 GWE 03 11.0 -44 57           ~ 157 0
3 GrW 170817 GWE 13 09 48.0850 -23 22 53.343           ~ 2683 0
4 GrW 190408 181802 GWE ~ ~           ~ 46 0
5 GrW 190503 185404 GWE ~ ~           ~ 40 0
6 GrW 190519 153544 GWE ~ ~           ~ 56 0
7 GrW 190602 175927 GWE ~ ~           ~ 51 0
8 GrW 190707 093326 GWE ~ ~           ~ 38 0
9 GrW 190727 060333 GWE ~ ~           ~ 40 0
10 GrW 190915 235702 GWE ~ ~           ~ 41 0
11 GrW 191129 134029 GWE ~ ~           ~ 32 0
12 GrW 191215 223052 GWE ~ ~           ~ 29 0
13 GrW 191222 033537 GWE ~ ~           ~ 30 0
14 GrW 200115 GWE ~ ~           ~ 160 0
15 GrW 200202 154313 GWE ~ ~           ~ 26 0
16 GrW 200311 115853 GWE ~ ~           ~ 40 0
17 GrW 151226 GWE ~ ~           ~ 275 1
18 GrW 150914 GWE ~ ~           ~ 674 1
19 GrW 170823 GWE ~ ~           ~ 69 0
20 GrW 190412 GWE ~ ~           ~ 169 0
21 GrW 190512 180714 GWE ~ ~           ~ 43 0
22 GrW 190521 074359 GWE ~ ~           ~ 40 0
23 GrW 190630 185205 GWE ~ ~           ~ 40 0
24 GrW 190720 000836 GWE ~ ~           ~ 39 0
25 GrW 190728 GWE ~ ~           ~ 48 0
26 GrW 190828 063405 GWE ~ ~           ~ 41 0
27 GrW 190924 021846 GWE ~ ~           ~ 50 0
28 GrW 191204 171526 GWE ~ ~           ~ 37 0
29 GrW 191216 213338 GWE ~ ~           ~ 37 0
30 GrW 200112 155838 GWE ~ ~           ~ 28 0
31 GrW 200129 065458 GWE ~ ~           ~ 55 0
32 GrW 200224 222234 BH ~ ~           ~ 44 0
33 GrW 200316 215756 GWE ~ ~           ~ 34 0
34 GrW 170608 GWE ~ ~           ~ 127 0
35 GrW 170104 GWE ~ ~           ~ 186 1
36 GrW 170809 GWE ~ ~           ~ 69 0

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