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Astron. Astrophys. 329, 579-582 (1998)

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4. Conclusions

[FORMULA] CrB has been constant in brightness during 1994 and 1995. No regular periodic variations with amplitude greater than 0.005 mag. are present in our data. In the same way, no long term variability greater than 0.01 mag. occurred during the span of our observations. The lack of variability is related to an inactive phase of this Be star, in whose spectra no emission lines are present.

The only remarkable feature during the period considered has been a fading event of an amplitude of about 0.02 mag in all four uvby bands, with a duration of 0.2 - 0.3 days. This variation could be related to a sudden mass ejection from the stellar photosphere.

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© European Southern Observatory (ESO) 1998

Online publication: December 8, 1997
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