An orphan very-high-energy gamma-ray flare from 3C 279 was reported on 28 January 2018,
however, it was not accompanied by a Fermi-LAT flare. This VHE orphan flare was reported
by the High Energy Stereoscopic System (H.E.S.S) telescope Eleven days after the Fermi-LAT
flare. Distinct mechanisms from regular gamma-ray flares must produce orphan flares. A coherent
explanation for this phenomenon, the proton synchrotron, and electron synchrotron with External
Compton(EC) have been put forth.
Volume 444 -
38th International Cosmic Ray Conference (ICRC2023) -
Multi Messenger and Gravitational Wave (MM&GW)
Proton synchrotron a plausible explanation of Orphan flare of 3C 279 in 2018
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August 17, 2023
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Abstract
DOI: https://doi.org/10.22323/1.444.1580
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