Surprise! The ring around M87 galaxy's monster black hole wobbles over time.

rod

Oct 22, 2019
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This is interesting. The paper cited says this "Applying the same approach to the observational data sets, we find the M87* morphology in 2009–2017 to be consistent with a persistent asymmetric ring of ~40 μas diameter.", https://iopscience.iop.org/article/10.3847/1538-4357/abac0d

At a distance of 16.4E+6 pc for M87, 40 mas diameter = 6.56E+5 AU. The 6.5E+9 solar mass black hole diameter ~ 257 AU based upon Schwarzschild radius.
 

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