0000000001053701

AUTHOR

J. Serna Franco

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HAWC J2227+610 and its association with G106.3+2.7, a new potential Galactic PeVatron

2020

We present the detection of VHE gamma-ray emission above 100 TeV from HAWC J2227+610 with the HAWC observatory. Combining our observations with previously published results by VERITAS, we interpret the gamma-ray emission from HAWC J2227+610 as emission from protons with a lower limit in their cutoff energy of 800 TeV. The most likely source of the protons is the associated supernova remnant G106.3+2.7, making it a good candidate for a Galactic PeVatron. However, a purely leptonic origin of the observed emission cannot be excluded at this time.

HAWC - Abteilung HintonPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Hydrogen compounds010504 meteorology & atmospheric sciencesAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesLower limitGalaxySpace and Planetary ScienceObservatory0103 physical sciencesSupernova remnantAstrophysics - High Energy Astrophysical Phenomena010303 astronomy & astrophysicsAstrophysics::Galaxy Astrophysics0105 earth and related environmental sciences
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