G3425's nearly circular orbit points to a 4 to 4.4 solar-mass black hole from a failed supernova rather than a neutron star from a standard explosion.
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Fine-Tuned Supernova or Failed Explosion? Decoding the Origins of the G3425 Binary
G3425's nearly circular orbit points to a 4 to 4.4 solar-mass black hole from a failed supernova rather than a neutron star from a standard explosion.