I think Justin Hom at Arizona had a CHARA program last year to do this vetting. I'll check with him on if we need more data. I agree that CHARA is pretty ideal here!

I didn't do the calculation but it seems like zet Oph is small enough. Really hard to find enough good reference stars, so even if we slightly resolve the angular diameter, it might be good enough.

I think zet Pup and zet Oph are O stars, and they are currently on our list. We need really bright stars that are really far away (to minimize angular diameter) so we have a lot of B stars too if some of those are interesting.

The inner working angle is ~0.15 arcsec, pretty comparable to GPI, if that helps. We're also going to observe some Bright massive stars and we're hoping they don't have companions since we need them for dark hole digging!

I thought the talk was great! Really inspiring!

We have an information session next Tuesday, July 1, 1 pm Eastern / 10 am Pacific. This particular town hall is aimed at early-career researchers, although non-early career researchers are also welcome to attend.

Details are here: www.romancoronagraph.space/white-papers... (2/2)