Balona, L. A. ; Cuypers, J. ; Marang, F.

published in Astronomy and Astrophysics Supplement Series, 92, pp. 533-563 (1992)

Abstract: Results are presented of photometric campaign on some bright southern Be stars to search for periodic light variations. In order to obtain good phase coverage, many observations were conducted from two sites with different longitudes: ESO and SAAO. A large fraction of early-Be stars are found to be variable with periods close to or equal to their rotational periods. Particular attention is devoted to the late-Be stars. Unlike the hotter members of this class, the late-Be stars do not seem to have detectable periodic light variations except for one or two stars of very small amplitude.

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