Following up GW Alerts With MAGIC: The Third LIGO/Virgo Observation Run
Davide Miceli, Lucio Angelo Antonelli, Josefa Becerra Gonzalez,, Alessio Berti, \u{Z}eljka Bo\u{s}njak, Stefano Covino, Barbara De Lotto,, Francesca Del Puppo, Susumu Inoue, Francesco Longo, Elena Moretti, Lara Nava,, Barbara Patricelli

TL;DR
This paper discusses MAGIC's refined follow-up strategy for electromagnetic counterparts of gravitational wave events during LIGO/Virgo's third observation run, aiming to optimize detection despite localization uncertainties.
Contribution
It presents a new follow-up strategy tailored for the third LIGO/Virgo run, considering improved GW localization and multi-messenger coordination.
Findings
Enhanced follow-up procedures for O3 improve EM counterpart detection chances.
Strategy adapts to different GW and EM observational scenarios.
Refined approach increases efficiency of MAGIC's follow-up observations.
Abstract
The first two LIGO and Virgo observation runs have been important milestones in the gravitational wave (GW) field, thanks to the detection of GW signals from ten binary black hole systems and a binary neutron star system. In order to fully characterize the emitting source, the remnant object and its environment, electromagnetic follow-up observations at different wavelengths are essential, as learned from the GW170817/GRB170817A case. Given the quite large localization uncertainties provided by interferometers, the main challenge faced by facilities with a narrow field of view (e.g. Imaging Atmospheric Cherenkov Telescopes, IACTs) is to setup a suitable follow-up strategy in order to observe sky regions with the highest probability to host the electromagnetic (EM) counterpart of the GW signal. As member of the EM follow-up community, the MAGIC collaboration joined this effort in 2014.…
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Taxonomy
TopicsPulsars and Gravitational Waves Research · Gamma-ray bursts and supernovae · Astrophysics and Cosmic Phenomena
