$(\gamma\)-ray Emission from Classical Nova V392 Per: Measurements from Fermi and HAWC$

(\gamma\)-ray Emission from Classical Nova V392 Per: Measurements from Fermi and HAWC

This paper reports on the $\gamma$-ray properties of the 2018 Galactic nova V392 Per, spanning photon energies $\sim$0.1 GeV to 100 TeV by combining observations from the Fermi Gamma-ray Space Telescope and the HAWC Observatory. In one of the most rapidly evolving $\gamma$-ray signals yet obse...

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Veröffentlicht in:	arXiv.org 2022-12
Hauptverfasser:	Albert, A, Alfaro, R, Alvarez, C, Arteaga-Velázquez, J C, D Avila Rojas, Ayala Solares, H A, Babu, R, Belmont-Moreno, E, Blochwitz, C, Caballero-Mora, K S, Capistrán, T, Carramiñana, A, Casanova, S, Chaparro-Amaro, O, Cotti, U, Cotzomi, J, E De la Fuente C de León S Coutiño de León, R Diaz Hernandez, Dingus, B L, DuVernois, M A, Durocher, M, Díaz-Vélez, J C, Engel, K, Espinoza, C, Fan, K L, Fang, K, Fraija, N, García-González, J A, Garfias, F, González, M M, Goodman, J A, Harding, J P, Hernandez, S, Hinton, J, Huang, D, Hueyotl-Zahuantitla, F, Hüntemeyer, P, Iriarte, A, Joshi, V, Lara, A, Lee, W H, Linnemann, J T, Longinotti, A L, Luis-Raya, G, Lundeen, J, Malone, K, Marandon, V, Martinez, O, Martínez-Castro, J, Matthews, J A, Miranda-Romagnoli, P, Morales-Soto, J A, Moreno, E, Mostafá, M, Nayerhoda, A, Nellen, L, Newbold, M, Nisa, M U, Noriega-Papaqui, R, Omodei, N, Peisker, A, Y Pérez Araujo, Pérez-Pérez, E G, Rho, C D, Rosa-González, D, Ruiz-Velasco, E, Salazar-Gallegos, D, F Salesa Greus, Serna-Franco, A Sandoval J, Smith, A J, Son, Y, Springer, R W, Tibolla, O, Tollefson, K, Torres, I, Torres-Escobedo, R, Turner, R, Ureña-Mena, F, Villaseñor, L, Wang, X, Willox, E, A Zepeda H Zhou, Chomiuk, L, Aydi, E, Li, K L, Metzger, B D, Vurm, I
Format:	Artikel
Sprache:	eng
Schlagworte:	Emission analysis Fermi Gamma-ray Space Telescope Space telescopes
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Zusammenfassung:	This paper reports on the $\gamma$-ray properties of the 2018 Galactic nova V392 Per, spanning photon energies $\sim$0.1 GeV to 100 TeV by combining observations from the Fermi Gamma-ray Space Telescope and the HAWC Observatory. In one of the most rapidly evolving $\gamma$-ray signals yet observed for a nova, GeV $\gamma$ rays with a power law spectrum with index $\Gamma = 2.0 \pm 0.1$ were detected over eight 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 of the extension of the Fermi/LAT spectrum to energies above 5 TeV are disfavored 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.
ISSN:	2331-8422
DOI:	10.48550/arxiv.2201.10644

Zusammenfassung:	This paper reports on the \(\gamma\)-ray properties of the 2018 Galactic nova V392 Per, spanning photon energies \(\sim\)0.1 GeV to 100 TeV by combining observations from the Fermi Gamma-ray Space Telescope and the HAWC Observatory. In one of the most rapidly evolving \(\gamma\)-ray signals yet observed for a nova, GeV \(\gamma\) rays with a power law spectrum with index \(\Gamma = 2.0 \pm 0.1\) were detected over eight 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 of the extension of the Fermi/LAT spectrum to energies above 5 TeV are disfavored 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.
ISSN:	2331-8422
DOI:	10.48550/arxiv.2201.10644