Origin of Black Hole Spin in Lower-Mass-Gap Black Hole-Neutron Star Binaries

Ying Qin, Zhen-Han-Tao Wang, Georges Meynet +8

During the fourth observing run, the LIGO-Virgo-KAGRA Collaboration reported the detection of a coalescing compact binary (GW230529${}_{-}$181500) with component masses estimated at…