Speaker
Alberto Gálvez Ureña
Description
The origin of high-energy astrophysical neutrinos remains unknown despite growing statistics. Direct source association and stacking analyses of existing data have so far only been able to account for a small fraction of the astrophysical neutrino flux. In this work we present the results of a new approach to this problem that makes use of the angular, harmonic cross-correlation between IceCube data and galaxy surveys. This method aims at testing whether and how neutrino sources correlate with the large-scale structure of the Universe. Thanks to our tomographic approach, we are able to constrain the properties of the neutrino intensity and bias with the large-scale structure across redshifts.
