PoS - Proceedings of Science
Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Gamma-Ray Astronomy. GA-galactic
Upper Limits on gamma-ray emission from supernovae serendipitously observed with H.E.S.S.
R. Simoni*, N. Maxted, M. Renaud, J. Vink, L. Tibaldo  on behalf of the H.E.S.S. collaboration
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Pre-published on: August 16, 2017
Published on: August 03, 2018
Recent theoretical models suggest that young supernovae might be able to accelerate particles, which in turn might generate very high energy gamma-ray emission. We search for gamma-ray emission towards supernovae in nearby galaxies which were serendipitously within the field of view of the High Energy Stereoscopic System (H.E.S.S.) within a year of the supernova event. H.E.S.S. data collected between December 2003 and March 2015 were considered and compared to recent catalogs. Nine candidate supernovae were identified and analysed. No significant emission from these objects has been found. Gamma-ray emission upper limits, which are of the order $\sim$10$^{-13}$cm$^{-2}$s$^{-1}$ above 1 TeV, are reported.
DOI: https://doi.org/10.22323/1.301.0711
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