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A Search for IceCube Sub-TeV Neutrinos Correlated with Gravitational-wave Events Detected By LIGO/Virgo
Journal article   Open access

A Search for IceCube Sub-TeV Neutrinos Correlated with Gravitational-wave Events Detected By LIGO/Virgo

R Abbasi, M Ackermann, J Adams, S K Agarwalla, J A Aguilar, M Ahlers, J M Alameddine, N M Amin, K Andeen, G Anton, …
The Astrophysical Journal, v 959(2), 96
01 Dec 2023
url
https://doi.org/10.3847/1538-4357/aceefcView
Published, Version of Record (VoR)CC BY-NC V4.0 Open

Abstract

Astronomical and Space Sciences Astronomical sciences Astronomy & Astrophysics Atomic Molecular Nuclear Nuclear and Plasma Physics Particle and High Energy Physics Particle and Plasma Physics Physical Chemistry (incl. Structural) Physical Sciences Space Sciences
The LIGO/Virgo collaboration published the catalogs GWTC-1, GWTC-2.1, and GWTC-3 containing candidate gravitational-wave (GW) events detected during its runs O1, O2, and O3. These GW events can be possible sites of neutrino emission. In this paper, we present a search for neutrino counterparts of 90 GW candidates using IceCube DeepCore, the low-energy infill array of the IceCube Neutrino Observatory. The search is conducted using an unbinned maximum likelihood method, within a time window of 1000 s, and uses the spatial and timing information from the GW events. The neutrinos used for the search have energies ranging from a few GeV to several tens of TeV. We do not find any significant emission of neutrinos, and place upper limits on the flux and the isotropic-equivalent energy emitted in low-energy neutrinos. We also conduct a binomial test to search for source populations potentially contributing to neutrino emission. We report a nondetection of a significant neutrino-source population with this test.

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Astronomy & Astrophysics
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