No, they are imaged in reflected light, rather than a transit (silhouette).
The parent star is masked off, and I’m pretty sure it’s an image generated from multiple telescopes, “interferometry”, as others have mentioned.
The parent star is masked off, and I’m pretty sure it’s an image generated from multiple telescopes, “interferometry”, as others have mentioned.
https://en.wikipedia.org/wiki/Very_Large_Telescope
Unclear if they use the auxiliaries as part of the process.