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arXiv · 2002.01661

Correlation of highly variable blazars with TeV IceCube track events

R. Moharana·P. Majumdar·P. P. Basumallick·D. Bose·R. Prince·N. Gupta
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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 $L_j = 3.6 \times10^{47}$ erg/sec during the neutrino phase of 3FGL/4FGL J2255+2409.

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R. Moharana, P. Majumdar, P. P. Basumallick, D. Bose, R. Prince, N. Gupta. 2020-02-05. Correlation of highly variable blazars with TeV IceCube track events. https://arxiv.org/abs/2002.01661

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