Document Type
Article
Publication Date
11-29-2022
Department
Department of Physics
Abstract
This paper reports on the γ-ray properties of the 2018 Galactic nova V392 Per, spanning photon energies ∼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 γ-ray signals yet observed for a nova, GeV γ-rays with a power-law spectrum with an index Γ = 2.0 ± 0.1 were detected over 8 days following V392 Per’s optical maximum. HAWC observations constrain the TeV γ-ray signal during this time and also before and after. We observe no statistically significant evidence of TeV γ-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 γ-rays with hadronic acceleration models, incorporating optical observations, and compare the calculations with HAWC limits.
Publication Title
Astrophysical Journal
Recommended Citation
Albert, A.,
Alfaro, R.,
Alvarez, C.,
Arteaga-Velázquez, J.,
Rojas, D.,
Solares, H.,
Babu, R.,
Belmont-Moreno, E.,
Blochwitz, C.,
Caballero-Mora, K.,
Capistrán, T.,
Carramiñana, A.,
Casanova, S.,
Chaparro-Amaro, O.,
Cotti, U.,
Cotzomi, J.,
De la Fuente, E.,
de León, C.,
de León, S.,
Diaz Hernandez, R.,
Dingus, B.,
DuVernois, M.,
Durocher, M.,
Díaz-Vélez, J.,
Engel, K.,
Espinoza, C.,
Fan, K.,
Fang, K.,
Fraija, N.,
García-González, J.,
&
Garfias, F.
(2022).
γ-Ray Emission from Classical Nova V392 Per: Measurements from Fermi and HAWC.
Astrophysical Journal,
940(2).
http://doi.org/10.3847/1538-4357/ac966a
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/16642
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Version
Publisher's PDF
Publisher's Statement
© 2022. The Author(s). Published by the American Astronomical Society. Publisher’s version of record: https://doi.org/10.3847/1538-4357/ac966a