Jul 12 – 23, 2021
Europe/Berlin timezone

Testing the AGN Radio and Neutrino correlation using the MOJAVE catalog and 10 years of IceCube Data

Jul 12, 2021, 6:00 PM
1h 30m


Talk MM | Multi-Messenger Discussion


Abhishek Desai (University of Wisconsin Madison)


On 22 September 2017 IceCube reported a high-energy neutrino event which was found to be coincident with a flaring blazar, TXS 0506+056. This first multi-messenger observation hinted at blazars being sources of observed high-energy astrophysical neutrinos and raised a need for extensive correlation studies. Recent work shows that the internal absorption of gamma rays, and their interactions intrinsic to the source and with the extragalactic background, will cause a lack of energetic gamma-ray and neutrino correlation while hinting towards a correlation between neutrinos and lower photon energy observations in the X-ray and radio bands. Studies based on published IceCube alerts and radio observations, report a possible radio-neutrino correlation in both gamma-ray bright and gamma-ray dim active galactic nuclei (AGN). However, they have marginal statistical significance due to limited available data. We present a correlation analysis between 15 GHz radio observations of AGN reported in the MOJAVE XV catalog and 10 years of IceCube detector data and discuss the results derived from a time averaged stacking analysis.


AGN; IceCube; Neutrino; Radio; MOJAVE; multi-messenger; TXS0506+056;

Collaboration IceCube
Subcategory Experimental Results

Primary author

Abhishek Desai (University of Wisconsin Madison)


Justin Vandenbrouck (University of Wisconsin Madison) Alex Pizzuto (University of Wisconsin Madison) For the IceCube Collaboration

Presentation materials