For more than a decade, searches for common sources of gravitational-waves (GWs) and astrophysical neutrinos have returned null results. With the open public alerts of LIGO-Virgo during their third observing run O3 in 2019-2020, search for high energy neutrinos continued in realtime with IceCube. Here, we describe our analysis with Low-Latency Algorithm for Multi-messenger Astrophysics (LLAMA) which incorporates a Bayesian formalism with astrophysical priors to use the distance information from the 3D localization of GW detections for higher statistical power. Finally, we summarize our results during O3.
Realtime search for common sources of gravitational-waves and high-energy neutrinos