Search for neutrino emission from MeV blazars in the 1FLE catalog with IceCube*

The IceCube Neutrino Observatory has detected a diffuse flux of astrophysical neutrinos; however, its origin has yet to be fully accounted for. Recently, the first evidence for a source of astrophysical neutrinos was found from the blazar TXS 0506+056. Blazars are active galactic nuclei with a relativistic jet directed toward Earth, thereby providing ample opportunity for high-energy neutrino production. Previous searches for neutrino emission from populations of gamma-ray blazars detected in GeV and higher energies have not observed any significant neutrino excess. More recent hypotheses suggest lower-energy photons may be better indicators of TeV-PeV neutrino production. In this work, we present a likelihood analysis searching for cumulative neutrino emission from blazars in the first catalog of Fermi-LAT sources below 100 MeV (1FLE) using ten years of IceCube muon-neutrino data. We find the results of this analysis to be consistent with a background-only hypothesis and obtain upper limits on the neutrino flux from this population of blazars.