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Spectral variations of AeBe Herbig stars in the Mon R1 association
We present the change in the Halpha emission-line profile of the spectra of
some AeBe Herbig stars. In the spectrum of VY Mon, Halpha may have one of three
profile types: P Cyg, P Cyg III or single line in accordance with the
brightness variations of the star. HD259431 now shows a double Halpha profile
with the red component stronger than the blue component, while in the earlier
observations the blue peak was higher than the red peak. Finally, the last
Halpha profile of LkHalpha215 is very similar to that obtained by Finkenzeller
et al.Comment: 4pages, 3figure