Multi-messenger exploration of the transient radio sky with LIGO

On 2017 August 17, the field of gravitational-wave (GW) astronomy made the big leagues with a dazzling discovery. After several GW detections of black hole (BH)-BH mergers with no convincing electromagnetic counterparts, advanced LIGO and Virgo scored their first direct detection of GWs from a binary neutron star (NS) merger, an event dubbed GW170817. This event also gifted the astronomical community with an electromagnetic counterpart spanning all bands of the spectrum, motivating the continued hunt for electromagnetic counterparts during the recently concluded third observing run of LIGO and Virgo. In this talk, I will review what we have learned from GW170817 focusing on its radio counterpart, highlight some of the outcomes of the third LIGO/Virgo observing run, and conclude by discussing open questions and future prospects in the multi-messenger study of the transient radio sky.