When a Star Screams
Ever heard a star scream? Astrophysicists have detected the oscillating signal that heralds the last gasps of a star being sucked up by a previously dormant supermassive black hole.
The "screams," scientifically known as "quasiperiodic oscillations," occurred steadily every 200 seconds, but occasionally disappeared. Such signals have often been detected at smaller black holes and they’re believed to emanate from material about to be sucked in.
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