Correlation of highly variable blazars with TeV IceCube track events

Abstract

The first ever identification of a cosmic ray accelerator as the consequence of spacial and temporal correlation of IceCube event 170922A with flaring of a blazar TXS 0506+056 motivated us to look for other flaring blazars in Fermi-LAT 3FGL catalog, which could be correlated with IceCube high energy track events. We have studied the Fermi-LAT light curves of blazars correlated with neutrino track events. Among the eight sources identified within 2$\sigma$ angular uncertainty of the IceCube track events selected in our study, we find only one source 3FGL J2255+2409 was in flaring state during the neutrino detection. We have carried out a time dependent modelling of the multi-wavelength data from this blazar, and the neutrino event including leptonic energy losses and proton-proton interactions in its jet to determine whether it could be the origin of the neutrino event. Our lepto-hadronic model estimates a jet luminosity of $L_j=3.6\times 10^{47}$ erg/sec during the neutrino phase of 3FGL/4FGL J2255+2409.

arXiv comment5 pages and 3 figures

References in corpus (3)

• The IceCube Neutrino Observatory - Contributions to ICRC 2015 Part II: Atmospheric and Astrophysical Diffuse Neutrino Searches of All Flavors
• Jet-cloud/star interaction as an interpretation of neutrino outburst from the blazar TXS 0506+056
• Implications of a proton blazar inspired model on correlated observations of neutrinos with gamma-ray flaring blazars

Cited by in corpus (1)

• Searching for a Galactic component in the IceCube track-like neutrino events