For a system this small and a black hole this big, the smoking gun evidence would be a time lapse showing the stars orbiting a point with “nothing” there.
The evidence they presented in the paper is mostly circumstantial — essentially a statistical analysis.
The evidence they presented in the paper is mostly circumstantial — essentially a statistical analysis.
We have this video for Sagittarius A* : https://www.eso.org/public/videos/eso1825e/
I’m guessing that in a few years we’ll have a similar video of this area too.