Prospects for multi-messenger detection of binary neutron star mergers in the fourth LIGO-Virgo-KAGRA observing run
Date Issued
2022
Author(s)
•
•
•
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Filippo Santoliquido
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Giancarlo Cella
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Massimiliano Razzano
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Elena Cuoco
Abstract
The joint detection of GW170817 and GRB 170817A opened the era of
multi-messenger astronomy with gravitational waves (GWs) and provided the first
direct probe that at least some binary neutron star (BNS) mergers are
progenitors of short gamma-ray bursts (S-GRBs). In the next years, we expect to
have more multi-messenger detections of BNS mergers, thanks to the increasing
sensitivity of GW detectors. Here, we present a comprehensive study on the
prospects for joint GW and electromagnetic observations of merging BNSs in the
fourth LIGO--Virgo--KAGRA observing run with \emph{Fermi}, \emph{Swift},
INTEGRAL and SVOM. This work combines accurate population synthesis models with
simulations of the expected GW signals and the associated S-GRBs, considering
different assumptions about the GRB jet structure. We show that the expected
rate of joint GW and electromagnetic detections could be up to $\sim$ 6
yr$^{-1}$ when \emph{Fermi}/GBM is considered. Future joint observations will
help us to better constrain the association between BNS mergers and S-GRBs, as
well as the geometry of the GRB jets.
Volume
513
Issue
3
Start page
4159
Issn Identifier
0035-8711
Rights
open.access
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