Prospects for multi-messenger detection of binary neutron star mergers in the fourth LIGO-Virgo-KAGRA observing run. (arXiv:2204.12504v2 [astro-ph.HE] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Patricelli_B/0/1/0/all/0/1">Barbara Patricelli</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bernardini_M/0/1/0/all/0/1">Maria Grazia Bernardini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mapelli_M/0/1/0/all/0/1">Michela Mapelli</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+DAvanzo_P/0/1/0/all/0/1">Paolo D&#x27;Avanzo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Santoliquido_F/0/1/0/all/0/1">Filippo Santoliquido</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cella_G/0/1/0/all/0/1">Giancarlo Cella</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Razzano_M/0/1/0/all/0/1">Massimiliano Razzano</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cuoco_E/0/1/0/all/0/1">Elena Cuoco</a>

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.

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.

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