$N$-body modelling of the ED-2 stream progenitor shows Gaia BH3's formation involved dynamical interactions

Daniel Marín Pina, Mark Gieles, Sara Rastello +3

Context. The Gaia collaboration announced the discovery of a binary of a massive black hole (33 M${}_{\odot }$) with a low-mass giant star (Gaia BH3) in the ED-2 stellar stream. The pro…