  The IceCube neutrino telescope has detected a diffuse flux of high-energy
astrophysical neutrinos, but the sources of this flux have largely remained
elusive. Using the 10-year IceCube public dataset, we search for correlations
between neutrino events and tracers of large-scale structure (LSS). We conduct
a combined cross-correlation analysis using several wide-area galaxy catalogs
spanning a redshift range of z = 0.1 to z ~ 2.5 as well as maps of the cosmic
infrared background. We do not detect a definitive signal, but find tantalizing
hints of a potential positive correlation between neutrinos and the tracers of
LSS. We additionally construct a simple model to interpret galaxy-neutrino
cross-correlations in terms of the redshift distribution of neutrino sources.
We put upper limits on the clustering amplitude of neutrinos based on the
measured cross-correlations with galaxies and forecast the improvements on
these constraints that can be obtained using future detectors. We show that, in
the future, neutrino-galaxy cross-correlations should be a powerful probe to
constrain properties of neutrino source populations.
