Thread: Black holes
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Old 22-09-2021, 11:25 AM
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Shiraz (Ray)
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Quote:
Originally Posted by xelasnave View Post
They...who ever "they" are have been capturing the hot glowing gas falling into a black hole for many years now...think quasars...
Alex
Agreed, but the difference here is that "they" imaged not a vast early and fiery accretion disk (as in a quasar), but the actual black hole silhouette at the centre of a relatively tame accretion region.

The angular resolution was about 20 micro arcseconds - to get that fine a resolution and still have enough sensitivity to see anything was amazing. "One microarcsecond is about the size of a period at the end of a sentence if you were looking at it from Earth and that period was in a leaflet left on the moon"
from https://www.livescience.com/65211-qu...f%20New%20York.)

Cheers Ray
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