Search for gamma-ray bursts with the Antares neutrino telescope

TL;DR

This paper discusses how the Antares neutrino telescope enhances gamma-ray burst detection by integrating satellite alerts, improving sensitivity and detection efficiency through real-time data processing and specialized analysis methods.

Contribution

It introduces a satellite-triggered data acquisition approach in Antares, increasing neutrino detection sensitivity for gamma-ray bursts and applying novel analysis techniques for difficult-to-detect signals.

Findings

Increased detection sensitivity during satellite-triggered observations

Implementation of real-time data processing in Antares

Effective analysis methods for off-horizon gamma-ray bursts

Abstract

Satellites that are capable of detecting gamma-ray bursts can trigger the Antares neutrino telescope via the real-time gamma-ray bursts coordinates network. Thanks to the "all-data-to-shore" concept that is implemented in the data acquisition system of Antares, the sensitivity to neutrinos from gamma-ray bursts is significantly increased when a gamma-ray burst is detected by these satellites. The performance of the satellite-triggered data taking is shown, as well as the resulting gain in detection efficiency. Different search methods can be applied to the data taken in coincidence with gamma-ray bursts. For gamma-ray bursts above the Antares horizon, for which a neutrino signal is more difficult to find, an analysis method is applied to detect muons induced by the high-energy gamma rays from the source.