TeV gamma-rays from the region of Perseus Cluster

The results of 20-year observations of the Perseus cluster centering on the NGC 1275 including IC 310 radio galaxy and extragalactic supernova SN 2006gy at energies 800 GeV - 45 TeV by the SHALON telescope are presented. It was found, that the TeV γ-ray emission at energies > 800 GeV has an exten...

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Bibliographic Details
Published in:Journal of physics. Conference series 2020-02, Vol.1468 (1), p.12086
Main Authors: Sinitsyna, V.G., Sinitsyna, V.Y.
Format: Article
Language:English
Subjects:
Cosmic rays
Galactic clusters
Gamma emission
Gamma rays
Photon emission
Physics
Radio galaxies
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Summary:The results of 20-year observations of the Perseus cluster centering on the NGC 1275 including IC 310 radio galaxy and extragalactic supernova SN 2006gy at energies 800 GeV - 45 TeV by the SHALON telescope are presented. It was found, that the TeV γ-ray emission at energies > 800 GeV has an extended structure with a distinct core centered at the NGC 1275 nucleus and well correlates with the photon emission regions viewed in X-rays by Chandra and anti-correlates with radio-structures. Also, the variations of TeV γ-ray flux both at year- and day- scales were found. The obtained data indicate that the part of TeV γ-ray emission is generated by relativistic jets in the nucleus of NGC 1275. Whereas, the presence of an extended structure around NGC 1275 and the slow rise of the γ-ray flux is the evidence of the interaction of cosmic rays and magnetic fields generated in the jets at the galactic center with the gas of the Perseus cluster.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1468/1/012086