Dual BHs (IMAGE)

Northwestern University

Dual BHs

Caption

In August of 2019, the LIGO-Virgo gravitational-wave network witnessed the merger of a black hole with 23 times the mass of our sun and a mystery object 2.6 times the mass of the sun. Scientists do not know if the mystery object was a neutron star or black hole, but either way it set a record as being either the heaviest known neutron star or the lightest known black hole.

Credit

LIGO/Caltech/MIT/R. Hurt (IPAC)

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