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Title:Search for Axionlike-Particle-Induced Prompt γ -Ray Emission from Extragalactic Core-Collapse Supernovae with the Fermi Large Area Telescope
Authors:ID Meyer, Manuel, Erlangen Centre for Astroparticle Physics, University of Erlangen-Nuremberg, Erwin-Rommel-Str. 1, 91058 Erlangen, Germany (Author)
ID Petrushevska, Tanja (Author)
Files:.pdf SNALPs-2.pdf (30,47 MB)
MD5: C0CA17374BAD6AD9943964213933C6DF
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:During a core-collapse supernova (SN), axionlike particles (ALPs) could be produced through the Primakoff process and subsequently convert into γ rays in the magnetic field of the Milky Way. We do not find evidence for such a γ-ray burst in observations of extragalactic SNe with the Fermi Large Area Telescope (LAT). The SN explosion times are estimated from optical light curves and we find a probability of about ∼90% that the LAT observed at least one SN at the time of the core collapse. Under the assumption that at least one SN was contained within the LAT field of view, we exclude photon-ALP couplings ≳2.6×10−12 GeV−1 for ALP masses ma≲3×10−10 eV, improving previous limits from SN1987A by a factor of 2.
Keywords:darn matter, axions, axion-like particles, core-collapse supernovae
Publication version:Author Accepted Manuscript
Year of publishing:2020
Number of pages:7
Numbering:23, 124
PID:20.500.12556/RUNG-5562-01e1da41-d027-7be6-5b37-2a2760f40969 New window
COBISS.SI-ID:19315459 New window
DOI:10.1103/PhysRevLett.124.231101 New window
Publication date in RUNG:15.06.2020
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Record is a part of a journal

Title:Physical Review Letters
Shortened title:PhysRevLett
Year of publishing:2020

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:BI-US/19-20-017
Name:Unveiling the nature of the dark matter with a novel strategy: search for short gamma-ray bursts from supernovae induced by axionlike particles