Not exact matches
The team sifted
through data from all the x-ray sources situated within 70 light - years of Sgr A *, searching for those that had characteristics of black
holes and neutron stars in
binary systems and found four sources within just three light - years of the central black
hole.
In such a cluster, massive stars would sink towards the centre and,
through complex interactions with lighter stars, form
binary systems, possibly long after their transformation into black
holes.
GW170608 is the lightest black
hole binary that LIGO and Virgo have observed — and so is one of the first cases where black
holes detected
through gravitational waves have masses similar to black
holes detected indirectly via electromagnetic radiation, such as X-rays.