Patterns in the multi-wavelength behavior of candidate neutrino blazars

27 Mar 2020  ·  Franckowiak A., Garrappa S., Paliya V., Shappee B., Stein R., Strotjohann N. L., Kowalski M., Buson S., Kiehlmann S., Max-Moerbeck W., Angioni R. ·

Motivated by the identification of the blazar TXS 0506+056 as the first promising high-energy neutrino counterpart candidate, we search for additional neutrino blazars candidates among the Fermi-LAT detected blazars. We investigate the multi-wavelength behavior from radio to GeV gamma rays of blazars found to be in spatial coincidence with single high-energy neutrinos and lower-energy neutrino flare candidates... In addition, we compare the average gamma-ray emission of the potential neutrino-emitting sources to the entire sample of gamma-ray blazars. We find that neutrino-emitting blazar candidates are statistically compatible with both hypothesis of a linear correlation and of no correlation between neutrino and gamma-ray energy flux. read more

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High Energy Astrophysical Phenomena