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AkaSci 🛰️ /
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2024-07-07 18:39:48
in reply to nevent1q…p3ac

AkaSci 🛰️ on Nostr: This composite image from 2014 of quasar RX J1131-1231 uses data from NASA's Chandra ...

This composite image from 2014 of quasar RX J1131-1231 uses data from NASA's Chandra X-ray Observatory, ESA's XMM-Newton and Hubble.

X-ray data from Chandra was used to measure the spin of the quasar's supermassive black hole.

X-rays emitted and distorted from a region in the accretion disk located ~3x the radius of the event horizon led to the result that space-time at the black hole's event horizon is spinning at ~50% the speed of light.

https://chandra.harvard.edu/photo/2014/rxj1131/
#quasar #Chandra
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