  The advent of multi-messenger astronomy has allowed for new types of source
searches by neutrino detectors. We present the results of the first search for
0.5 - 5 GeV astrophysical neutrinos emitted from all compact binary mergers,
i.e., binary black hole, neutron star black, mass gap and binary neutron star
mergers, detected by the LIGO and Virgo interferometers during their three
first runs of observation. We use an innovative approach that lowers the energy
threshold from ~10 GeV to ~0.5 GeV and searches for an excess of GeV-scale
events during astrophysical transient events. No significant excess was found
from the studied mergers, and there is currently no hint of a population of GeV
neutrino emitters found in the IceCube data.
