2022A&A...657L...8B


Query : 2022A&A...657L...8B

2022A&A...657L...8B - Astronomy and Astrophysics, volume 657, L8-8 (2022/1-1)

Probing the progenitors of spinning binary black-hole mergers with long gamma-ray bursts.

BAVERA S.S., FRAGOS T., ZAPARTAS E., RAMIREZ-RUIZ E., MARCHANT P., KELLEY L.Z., ZEVIN M., ANDREWS J.J., COUGHLIN S., DOTTER A., KOVLAKAS K., MISRA D., SERRA-PEREZ J.G., QIN Y., ROCHA K.A., ROMAN-GARZA J., TRAN N.H. and XING Z.

Abstract (from CDS):

Long-duration gamma-ray bursts are thought to be associated with the core-collapse of massive, rapidly spinning stars and the formation of black holes. However, efficient angular momentum transport in stellar interiors, currently supported by asteroseismic and gravitational-wave constraints, leads to predominantly slowly-spinning stellar cores. Here, we report on binary stellar evolution and population synthesis calculations, showing that tidal interactions in close binaries not only can explain the observed subpopulation of spinning, merging binary black holes but also lead to long gamma-ray bursts at the time of black-hole formation. Given our model calibration against the distribution of isotropic-equivalent energies of luminous long gamma-ray bursts, we find that ≃10% of the GWTC-2 reported binary black holes had a luminous long gamma-ray burst associated with their formation, with GW190517 and GW190719 having a probability of ≃85% and ≃60%, respectively, being among them. Moreover, given an assumption about their average beaming fraction, our model predicts the rate density of long gamma-ray bursts, as a function of redshift, originating from this channel. For a constant beaming fraction fB ∼ 0.05 our model predicts a rate density comparable to the observed one, throughout the redshift range, while, at redshift z ∈ [0, 2.5], a tentative comparison with the metallicity distribution of observed LGRB host galaxies implies that between 20% to 85% of the observed long gamma-ray bursts may originate from progenitors of merging binary black holes. The proposed link between a potentially significant fraction of observed, luminous long gamma-ray bursts and the progenitors of spinning binary black-hole mergers allows us to probe the latter well outside the horizon of current-generation gravitational wave observatories, and out to cosmological distances.

Abstract Copyright: © ESO 2022

Journal keyword(s): black hole physics - binaries: close - gamma rays: stars - accretion - accretion disks - gravitational waves

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 GrW 170814 GWE 03 11.0 -44 57           ~ 128 0
2 HD 226868 HXB 19 58 21.6757355952 +35 12 05.784512688 9.38 9.72 8.91 8.42   O9.7Iabpvar 4188 0
3 GrW 170104 GWE ~ ~           ~ 157 1
4 GrW 170729 GWE ~ ~           ~ 104 0
5 GrW 170823 GWE ~ ~           ~ 51 0
6 GrW 190719 GWE ~ ~           ~ 3 0
7 GrW 150914 GWE ~ ~           ~ 518 1
8 GrW 151226 GWE ~ ~           ~ 244 1
9 GrW 170608 GWE ~ ~           ~ 100 0
10 GrW 170809 GWE ~ ~           ~ 52 0
11 GrW 170818 GWE ~ ~           ~ 50 0
12 GrW 190412 GWE ~ ~           ~ 96 0
13 GrW 190521 GWE ~ ~           ~ 199 0
14 GrW 190517 055101 GWE ~ ~           ~ 23 0
15 GrW 151012 grv ~ ~           ~ 139 1

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2023.01.27-19:07:08

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