@article{94c10fa54eba44ebb2ffd19d9ad3d3c9,
title = "VERITAS and Fermi-LAT Constraints on the Gamma-Ray Emission from Superluminous Supernovae SN2015bn and SN2017egm",
abstract = "Superluminous supernovae (SLSNe) are a rare class of stellar explosions with luminosities \textasciitilde{} 10-100 times greater than ordinary core-collapse supernovae. One popular model to explain the enhanced optical output of hydrogenpoor (Type I) SLSNe invokes energy injection from a rapidly spinning magnetar. A prediction in this case is that high-energy gamma-rays, generated in the wind nebula of the magnetar, could escape through the expanding supernova ejecta at late times (months or more after optical peak). This paper presents a search for gamma-ray emission in the broad energy band from 100 MeV to 30 TeV from two Type I SLSNe, SN2015bn, and SN2017egm, using observations from Fermi-LAT and VERITAS. Although no gamma-ray emission was detected from either source, the derived upper limits approach the putative magnetar's spin-down luminosity. Prospects are explored for detecting very-high-energy (VHE; 100 GeV-100 TeV) emission from SLSNe-I with existing and planned facilities such as VERITAS and CTA.",
author = "\{VERITAS Collaboration\} and A. Acharyya and Adams, \{C. B.\} and P. Bangale and W. Benbow and Buckley, \{J. H.\} and M. Capasso and Dwarkadas, \{V. V.\} and M. Errando and A. Falcone and Q. Feng and Finley, \{J. P.\} and Foote, \{G. M.\} and L. Fortson and A. Furniss and G. Gallagher and A. Gent and Hanlon, \{W. F.\} and O. Hervet and J. Holder and Humensky, \{T. B.\} and W. Jin and P. Kaaret and M. Kertzman and M. Kherlakian and D. Kieda and Kleiner, \{T. K.\} and S. Kumar and Lang, \{M. J.\} and M. Lundy and G. Maier and McGrath, \{C. E.\} and J. Millis and P. Moriarty and R. Mukherjee and M. Nievas-Rosillo and S. O'Brien and Ong, \{R. A.\} and Patel, \{S. R.\} and K. Pfrang and M. Pohl and E. Pueschel and J. Quinn and K. Ragan and Reynolds, \{P. T.\} and D. Ribeiro and E. Roache and Ryan, \{J. L.\} and I. Sadeh and M. Santander and Sembroski, \{G. H.\} and R. Shang and M. Splettstoesser and D. Tak and Tucci, \{J. V.\} and A. Weinstein and Williams, \{D. A.\} and Metzger, \{B. D.\} and M. Nicholl and I. Vurm",
note = "Publisher Copyright: {\textcopyright} 2023. The Author(s).",
year = "2023",
month = mar,
day = "1",
doi = "10.3847/1538-4357/acb7e6",
language = "English",
volume = "945",
journal = "Astrophysical Journal",
issn = "0004-637X",
number = "1",
}