Search for axion-like-particle induced gamma-ray bursts from core-collapse supernovae with the Fermi LAT

Discussion timeslot (ZOOM-Meeting): 21. July 2021 - 12:00
ZOOM-Meeting URL: https://desy.zoom.us/j/91999581729
ZOOM-Meeting ID: 91999581729
ZOOM-Meeting Passcode: ICRC2021
Corresponding Session: https://icrc2021-venue.desy.de/channel/41-Indirect-Dark-Matter-Detection-Through-Photons-and-Neutrinos-DM/95
Live-Stream URL: https://icrc2021-venue.desy.de/livestream/Discussion-05/6

Abstract:
'During a core-collapse supernova (SN), axion-like particles (ALPs) could be produced through the Primakoff process and subsequently convert into gamma rays in the magnetic field of the Milky Way. Using a sample of well studied extragalactic SNe at optical wavelengths, we estimate the time of the core collapse and search for a coincident gamma-ray burst with the Fermi Large Area Telescope (LAT). Under the assumption that at least one SN was contained within the LAT field of view, we exclude photon-ALP couplings within a factor of ∼5 of previous limits from SN1987A. With the increasing number of SNe observed with optical surveys, our results demonstrate the potential to probe ALP dark matter with combined optical and gamma-ray observations.'

Authors: Manuel Meyer | Tanja Petrushevksa
Co-Authors: For the Fermi-LAT Collaboratioin
Collaboration: Ferrmi-LAT

Indico-ID: 172
Proceeding URL: https://pos.sissa.it/395/510