This work presents a novel method to estimate the effective opening angle of CBe star disks from projected axis ratio measurements , obtained by interferometry using Bayesian statistics .
A Monte Carlo scheme was used to generate a large set of theoretical axis ratios from disk models using different distributions of disk densities and opening angles .
These theoretical samples were then compared to observational samples , using a two-sample Kolmogorov-Smirnov test , to determine which theoretical distribution best reproduces the observations .
The results suggest that the observed ratio distributions in the K- , H- , and N-band can best be explained by the presence of thin disks , with opening half-angles of the order of 0.15 \arcdeg to 4.0 \arcdeg .
Results for measurements over the H \alpha line point toward slightly thicker disks , 3.7 \arcdeg to 14 \arcdeg , which is consistent with a flaring disk predicted by the viscous disk model .