"Let's Do the Twist"
Fifty-five million light-years away, in the galaxy known as M87, lies a supermassive black hole. The radio image captured by the Event Horizon Telescope (EHT) provides direct confirmation that the black hole rotates.
A new study published in "Nature" has given us more rotational evidence, but also questions what exactly causes the black hole to precess.
Read more at: https://briankoberlein.com/blog/lets-do-the-twist/
#astrophysics #astronomy #science #cosmology #blackhole #nature #physics
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Do they explain how they know the jet precession follows the motion of the BH rotation axis?
@tobychev Jets form along the magnetic field poles, and if that's precessing then the black hole is rotating. The work doesn't argue than the black hole and precession are the same rate, only that precession proves rotation.