Abstract

By constantly monitoring at least one complete hemisphere of the sky, neutrino telescopes are well designed to detect neutrinos emitted by transient astrophysical events. Real-time searches for ANTARES neutrino candidates coincident with gamma-ray bursts, High-Energy Starting Events and Extremely High-Energy Events detected by IceCube and gravitational wave (GW) candidates observed by LIGO/Virgo are performed. By requiring coincident detection, this approach increases the sensitivity of the telescope and the significance of a potential discovery. The latest results of these analyses will be presented. In particular, a neutrino follow-up is performed after the detection of GW events by the LIGO/Virgo collaboration. Because of the good angular accuracy of neutrino telescopes compared to current GW detectors with two interferometers, a coincident detection would drastically constrain the position of the GW source on the sky, bringing valuable information for subsequent electromagnetic follow-ups. Since no coincident ANTARES event has been detected so far, the neutrino fluence and the total energy emitted in neutrinos are constrained for each GW alert.

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