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Iskanje narave temne snovi
Tanja Petrushevska, 2020, popular article

Keywords: temno snov, supernova
Published in RUNG: 15.06.2020; Views: 2262; Downloads: 0
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2688.
Search for Axionlike-Particle-Induced Prompt γ -Ray Emission from Extragalactic Core-Collapse Supernovae with the Fermi Large Area Telescope
Manuel Meyer, Tanja Petrushevska, 2020, original scientific article

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
Published in RUNG: 15.06.2020; Views: 2557; Downloads: 77
.pdf Full text (30,47 MB)

2689.
Stoletnica deželne elektrike
Drago Papler, 2015, review, book review, critique

Keywords: domoznanstvo, elektrifikacija, hidroelektrarna, elektroenergetika
Published in RUNG: 11.06.2020; Views: 2365; Downloads: 0
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2690.
Krožni tok med energetiko, ekonomijo in ekologijo
Drago Papler, 2020, polemic, discussion, commentary

Keywords: pogledi, energetika, znanje, ekonomija
Published in RUNG: 11.06.2020; Views: 2481; Downloads: 0
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