Black Hole Tugboat: Birth of a Stellar Core ⚡ экспресс
Original: "Black hole dragging: a new mechanism for forming nuclear star clusters in giant elliptical galaxies"
Supermassive black holes can not only destroy but also build dense stellar cores at the centers of galaxies.
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After a galaxy merger, the black hole gets a kick like from a gravitational cannon and starts moving. If the speed is just right, instead of losing stars, it gathers a swarm around itself — and a dense core lights up at the galaxy's center, visible through telescopes.
🎯 These clusters can pack millions of stars into a space less than ten light-years across — imagine cramming all the stars in the Sun's neighborhood into a single city block.