English

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

High Energy Astrophysical Phenomena 2022-12-19 v2

Abstract

This paper reports on the γ\gamma-ray properties of the 2018 Galactic nova V392 Per, spanning photon energies \sim0.1 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 γ\gamma-ray signals yet observed for a nova, GeV γ\gamma rays with a power law spectrum with index Γ=2.0±0.1\Gamma = 2.0 \pm 0.1 were detected over eight days following V392 Per's optical maximum. HAWC observations constrain the TeV γ\gamma-ray signal during this time and also before and after. We observe no statistically significant evidence of TeV γ\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 γ\gamma rays with hadronic acceleration models, incorporating optical observations, and compare the calculations with HAWC limits.

Keywords

Cite

@article{arxiv.2201.10644,
  title  = {$\gamma$-ray Emission from Classical Nova V392 Per: Measurements from Fermi and HAWC},
  author = {A. Albert and R. Alfaro and C. Alvarez and J. C. Arteaga-Velázquez and D. Avila Rojas and H. A. Ayala Solares and R. Babu and E. Belmont-Moreno and C. Blochwitz and K. S. Caballero-Mora and T. Capistrán and A. Carramiñana and S. Casanova and O. Chaparro-Amaro and U. Cotti and J. Cotzomi and E. De la Fuente. C. de León. S. Coutiño de León and R. Diaz Hernandez and B. L. Dingus and M. A. DuVernois and M. Durocher and J. C. Díaz-Vélez and K. Engel and C. Espinoza and K. L. Fan and K. Fang and N. Fraija and J. A. García-González and F. Garfias and M. M. González and J. A. Goodman and J. P. Harding and S. Hernandez and J. Hinton and D. Huang and F. Hueyotl-Zahuantitla and P. Hüntemeyer and A. Iriarte and V. Joshi and A. Lara and W. H. Lee and J. T. Linnemann and A. L. Longinotti and G. Luis-Raya and J. Lundeen and K. Malone and V. Marandon and O. Martinez and J. Martínez-Castro and J. A. Matthews and P. Miranda-Romagnoli and J. A. Morales-Soto and E. Moreno and M. Mostafá and A. Nayerhoda and L. Nellen and M. Newbold and M. U. Nisa and R. Noriega-Papaqui and N. Omodei and A. Peisker and Y. Pérez Araujo and E. G. Pérez-Pérez and C. D. Rho and D. Rosa-González and E. Ruiz-Velasco and D. Salazar-Gallegos and F. Salesa Greus and A. Sandoval. J. Serna-Franco and A. J. Smith and Y. Son and R. W. Springer and O. Tibolla and K. Tollefson and I. Torres and R. Torres-Escobedo and R. Turner and F. Ureña-Mena and L. Villaseñor and X. Wang and E. Willox and A. Zepeda. H. Zhou and L. Chomiuk and E. Aydi and K. L. Li and B. D. Metzger and I. Vurm},
  journal= {arXiv preprint arXiv:2201.10644},
  year   = {2022}
}

Comments

18 pages, 14 figures; revised for referee comments; section 5 revised