Not exact matches
Another is that black
holes find one another within a dense cluster of stars, as
massive black
holes sink to the center of the clump (SN Online: 6/19/16).
For theorists tinkering with computer models, the trouble lies in getting a
massive amount of gas to pile up long enough to collapse all at once, into a vortex that feeds a nascent black
hole like water down a
sink drain.
But Kulkarni counters that such
massive objects should
sink even closer to the center and says the lack of x-rays means they aren't black
holes at all.
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.
In time, Oka said, the object will be drawn towards Sagittarius A * and
sink into it, making the supermassive black
hole at the heart of the Milky Way even more
massive.
Single black
holes form in dense cluster environments and then — because they are the most
massive objects —
sink to the center of the cluster.