Fig. 8: Variations of the source null depth of α Boo and δ Vir and their respective fitted curves with respect to the baseline.
From: Scalable photonic-based nulling interferometry with the dispersed multi-baseline GLINT instrument

a Variation of the source null depth of α Boo (blue dots) as a function of baseline together with the best-fit model (blue solid curve). The orange area highlights the expected range of null depth at 1550 nm for an expected UD diameter between 19.1 and 20.4 mas (obtained from the literature). Error bars represent the standard error of the measurements. b Source null depth of δ Vir (blue dots) with baseline together with the best-fit model (blue solid curve). The orange gives the expected range of null depth for a UD diameter between 9.86 and 11.3 mas (from the literature). The error bars represent the standard deviation of the fitted value of the source null depth given by the covariance matrix of the fit of the histogram, rescaled by the reduced χ2 of that fit.