(a) Spectrum of the binary system T Tau. Filled circles, observed CGS3 spectrum of T Tau (N + S); squares, photometry of T Tau N (see text); open circles, spectrum of T Tau S obtained by subtracting the fit to the T Tau N photometry from the observed (N + S) spectrum. The T Tau S spectrum has been fitted with a model for case 4. (b) Spectrum of the binary system Haro 6‐10. Filled circles, observed CGS3 spectrum of Haro 6‐10 (N + S); squares, photometry of Haro 6‐10 S (see text); open circles, spectrum of Haro 6‐10 N obtained by subtracting the power‐law fit to Haro 6‐10 S. This spectrum has been fitted with a case 4 model.