%0 Journal Article
%T gamma-Ray Emission from Classical Nova V392 Per: Measurements from Fermi and HAWC
%A HAWC Collaboration (Albert, A. et al
%A Salesa Greus, F.
%J Astrophysical Journal
%D 2022
%V 940
%N 2
%I IOP Publishing Ltd
%@ 0004-637x
%G English
%F HAWCCollaborationAlbert+SalesaGreus2022
%O WOS:000898877400001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5444), last updated on Mon, 16 Jan 2023 09:52:32 +0000
%X This paper reports on the gamma-ray properties of the 2018 Galactic nova V392 Per, spanning photon energies similar to 0.1 GeV-100 TeV by combining observations from the Fermi Gamma-ray Space Telescope and the HAWC Observatory. As one of the most rapidly evolving gamma-ray signals yet observed for a nova, GeV gamma-rays with a power-law spectrum with an index Gamma = 2.0 +/- 0.1 were detected over 8 days following V392 Per's optical maximum. HAWC observations constrain the TeV gamma-ray signal during this time and also before and after. We observe no statistically significant evidence of TeV gamma-ray emission from V392 Per, but present flux limits. Tests disfavor the extension of the Fermi Large Area Telescope spectrum to energies above 5 TeV by 2 standard deviations (95%) or more. We fit V392 Per's GeV gamma-rays with hadronic acceleration models, incorporating optical observations, and compare the calculations with HAWC limits.
%R 10.3847/1538-4357/ac966a
%U https://arxiv.org/abs/2201.10644
%U https://doi.org/10.3847/1538-4357/ac966a
%P 141-14pp