Deep observations of Kepler's SNR with H.E.S.S.

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  • uploaded June 26, 2021

Discussion timeslot (ZOOM-Meeting): 20. July 2021 - 12:00
ZOOM-Meeting URL: https://desy.zoom.us/j/98542982538
ZOOM-Meeting ID: 98542982538
ZOOM-Meeting Passcode: ICRC2021
Corresponding Session: https://icrc2021-venue.desy.de/channel/46-Supernova-Remnants-GAD-GAI-CRD/76
Live-Stream URL: https://icrc2021-venue.desy.de/livestream/Discussion-04/5

Abstract:
"Kepler's supernova remnant (SNR) which is produced by the most recent naked-eye supernova in our Galaxy is one of the best studied SNRs, but its gamma-ray detection has eluded us so far. Observations with modern imaging atmospheric Cherenkov telescopes (IACT) have enlarged the knowledge about nearby SNRs with ages younger than 500 years by establishing Cas A and Tycho's SNRs as very high energy (VHE) gamma-ray sources and setting a lower limit on the distance to Kepler's SNR. This SNR is significantly more distant than the other two and expected to be one of the faintest gamma-ray sources within reach of the IACT arrays of this generation. We report strong evidence for a VHE signal from Kepler's SNR based on deep observations of the High Energy Stereoscopic System (H.E.S.S.) with an exposure of 152 hours, including 120 hours accumulated in 2017-2020. We further discuss implications of this result for cosmic-ray acceleration in young SNRs."

Authors: Dmitry Prokhorov | Rachel Simoni | Jacco Vink | Stefan Funk | Nukri Komin | Denys Malyshev | Lars Mohrmann | Stefan Ohm | Gerd Pühlhofer | for the H.E.S.S. collaboration
Collaboration: H.E.S.S.

Indico-ID: 391
Proceeding URL: https://pos.sissa.it/395/805

Tags:
Presenter: Dmitry Prokhorov

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