Relative stellar size in binary A

Determine which component of binary A in TIC 433545934 is the larger star, despite the nearly identical effective temperatures of the two components and the unequal eclipse morphology.

Background

The primary eclipse of binary A is slightly deeper, indicating that the eclipsed primary component has a marginally higher surface brightness. However, the two stars have nearly identical effective temperatures, while the flat-bottomed eclipses imply substantially different radii. The authors report that their preferred photodynamical solutions identify the primary as the larger star, but the small temperature difference and observational uncertainties leave the stellar-size interpretation explicitly unclear.