Repozitorij Univerze v Novi Gorici

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Naslov:Search for Axionlike-Particle-Induced Prompt γ -Ray Emission from Extragalactic Core-Collapse Supernovae with the Fermi Large Area Telescope
Avtorji:Meyer, Manuel (Avtor)
Petrushevska, Tanja (Avtor)
Datoteke:.pdf SNALPs-2.pdf (30,47 MB)
 
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis: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:darn matter, axions, axion-like particles, core-collapse supernovae
Leto izida:2020
Št. strani:7
Številčenje:124, 23
COBISS_ID:19315459 Povezava se odpre v novem oknu
URN:URN:SI:UNG:REP:PMCTVWMJ
DOI:10.1103/PhysRevLett.124.231101 Povezava se odpre v novem oknu
Število ogledov:981
Število prenosov:38
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Področja:Gradivo ni uvrščeno v področja.
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Gradivo je del revije

Naslov:Physical Review Letters
Skrajšan naslov:PhysRevLett
Leto izida:2020

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Program financ.:Sofinanciranje znanstvenoraziskovalnega sodelovanja med RS in ZDA
Številka projekta:BI-US/19-20-017
Naslov:Unveiling the nature of the dark matter with a novel strategy: search for short gamma-ray bursts from supernovae induced by axionlike particles
Akronim:
ID projekta:info:eu-repo/grantAgreement/ARRS/Sofinanciranje%20znanstvenoraziskovalnega%20sodelovanja%20med%20RS%20in%20ZDA/BI-US%2F19-20-017

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