In the majority of other known black hole binaries, the companion star is large, massive and bright, this brings to question if the companion existed alongside star that created Black Hole or it was born out of supernova remnant.
In the majority of other known black hole binaries, the companion star is large, massive and bright, this brings to question if the companion existed alongside star. This star created. Black Hole was born out of supernova remnant. It was born out of supernova remnant.