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Published online by Cambridge University Press: 23 September 2016
It is well known (cf. Mendoza 1983) that “classical“ Be stars, and Herbig Ae/Be objects, in addition to hydrogen lines in emission, also share at least two photometric characteristics, namely, light varitions, and infrared color excesses.
We have selected the α(16)⋀(9) {Mendoza 1979}, and the JHKL-photometric systems, in order to study some photometric properties of Be stars. The observations have been carried out at the National Astronomical Observatory (San Pedro Martir, B.C.N., and Tonantzintla, Pue.), Mexico, from 1976 to 1986.