Lense-Thirring precession tagged posts

Einstein’s theory comes wrapped up with a bow: Astronomers spot star ‘wobbling’ around black hole

An artist's impression depicts the accretion disc surrounding a black hole
An artist’s impression depicts the accretion disc surrounding a black hole, in which the inner region of the disc wobbles. In this context, the wobble refers to the orbit of material surrounding the black hole changing orientation around the central object. Credit NASA.

The cosmos has served up a gift for a group of scientists who have been searching for one of the most elusive phenomena in the night sky. Their study, presented in Science Advances, reports on the very first observations of a swirling vortex in spacetime caused by a rapidly rotating black hole.

The process, known as Lense-Thirring precession or frame-dragging, describes how black holes twist the spacetime that surrounds them, dragging nearby objects like stars and wobbling their orbits along the way.

Discovery of ...

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