Journal Article

PUBDB-2023-01300

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png VERITAS and Fermi-LAT Constraints on the Gamma-Ray Emission from Superluminous Supernovae SN2015bn and SN2017egm

Acharyya, A. ; Adams, C. B. ; Bangale, P. ; Benbow, W. ; Buckley, J. H. ; Capasso, M. ; Dwarkadas, V. V. ; Errando, M. ; Falcone, A. ; Feng, Q. ; Finley, J. P. ; Foote, G. M. ; Fortson, L. ; Furniss, A. ; Gallagher, G. ; Gent, A. ; Hanlon, W. F. ; Hervet, O. ; Holder, J. ; Humensky, T. B. ; Jin, W. ; Kaaret, P. ; Kertzman, M. ; Kherlakian, M.DESY* ; Kieda, D. ; Kleiner, T. K.DESY* ; Kumar, S. ; Lang, M. J. ; Lundy, M. ; Maier, G.DESY* ; McGrath, C. E. ; Millis, J. ; Moriarty, P. ; Mukherjee, R. ; Nievas-Rosillo, M.DESY* ; O'Brien, S. ; Ong, R. A. ; Patel, S. R.DESY* ; Pfrang, K.DESY* ; Pohl, M.DESY* ; Pueschel, E.DESY* ; Quinn, J. ; Ragan, K. ; Reynolds, P. T. ; Ribeiro, D. (Corresponding author)Extern* ; Roache, E. ; Ryan, J. L. ; Sadeh, I.DESY* ; Santander, M. ; Sembroski, G. H. ; Shang, R. ; Splettstoesser, M. ; Tak, D.DESY* ; Tucci, J. V. ; Weinstein, A. ; Williams, A. D. A. ; Metzger, B. D. ; Nicholl, M. ; Vurm, I. ; VERITAS Collaboration (Collaboration Author)

2023
Institute of Physics Publ. London

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Please use a persistent id in citations: doi:10.3847/1538-4357/acb7e6  doi:10.3204/PUBDB-2023-01300

Report No.: arXiv:2302.06686

Abstract: Superluminous supernovae (SLSNe) are a rare class of stellar explosions with luminosities ∼ 10–100 times greater than ordinary core-collapse supernovae. One popular model to explain the enhanced optical output of hydrogen-poor (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.

Keyword(s): gamma ray: emission ; energy: injection ; supernova ; gamma ray: VHE ; magnetar ; VERITAS ; GLAST ; optical ; TeV ; GeV ; Cherenkov Telescope Array

Note: 20 pages, 7 figures, 2 tables

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Contributing Institute(s):

1. VERITAS (Z_VER)

Research Program(s):

1. 613 - Matter and Radiation from the Universe (POF4-613) (POF4-613)

Experiment(s):

1. Very Energetic Radiation Imaging Telescope Array System

Appears in the scientific report 2023

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Acharyya, A. ; Adams, C. B. ; Bangale, P. ; et al
VERITAS and Fermi-LAT constraints on the Gamma-ray Emission from Superluminous Supernovae SN2015bn and SN2017egm
[10.3204/PUBDB-2023-01104]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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