Search for axionlike-particle-induced prompt [gamma]-ray emission from extragalactic core-collapse supernovae with the Fermi Large Area Telescope

Manuel Meyer (Avtor), T. Petrushevska (Avtor)

Povzetek

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.

Ključne besede

dark matter;axions;axion-like particles;core-collapse supernovae;

Podatki

Jezik:	Angleški jezik
Leto izida:	2020
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UNG - Univerza v Novi Gorici
UDK:	53
COBISS:	19315459
ISSN:	0031-9007
Št. ogledov:	1889
Št. prenosov:	72
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

URN:	URN:SI:UNG
Vrsta dela (COBISS):	Delo ni kategorizirano
Strani:	str. 1-7
Letnik:	ǂVol. ǂ124
Zvezek:	ǂiss. ǂ23
Čas izdaje:	Jun. 2020
DOI:	10.1103/PhysRevLett.124.231101
ID:	11838490