Shell‐type supernova remnants and very high energy cosmic rays

• Published in: Astronomische Nachrichten Vol. 344; no. 1-2
• Main Authors: Sinitsyna, Vera G., Sinitsyna, Vera Y.
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY‐VCH Verlag GmbH & Co. KGaA 01.01.2023; Wiley Subscription Services, Inc
• Subjects: Cas A; Cosmic rays; G166.0+4.3; High energy astronomy; IC 443; Space telescopes; Spectral energy distribution; Supernova remnants; Telescopes; Tycho's SNR; γCygni SNR
• ISSN: 0004-6337; 1521-3994
• DOI: 10.1002/asna.20220095

The investigation of very high energy (VHE) γ‐ray sources by any methods, including mirror Cherenkov telescopes, touches on the problem of the cosmic‐ray origin and, accordingly, the role of the Galaxy in their generation. The SHALON observations have yielded the results on Galactic supernova remnants (SNR) of different ages. Among them are: the shell‐type SNRs Tycho's SNR, Cas A, IC 443, γCygni SNR, G166.0+4.3. For each of SNRs, the observation results are presented with spectral energy distribution by SHALON in comparison with other experiment data and images by SHALON in together with data from X‐ray by Chandra and radio‐data by CGPS. The experimental data presented here have confirmed the prediction of the theory about the hadronic generation mechanism of VHE 800 GeV–100 TeV γ‐rays in Tycho's SNR, Cas A and IC 443, and also the collected experimental data help to make clear the origin of TeV γ‐ray emission in the older SNRs like γCygni SNR and G166.0+4.3.