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1997A&A...321..888W - Astronomy and Astrophysics, volume 321888-890 (1997/5-3)
Circumstellar disk variations around β Pictoris.
WELSH B.Y., CRAIG N., JELINSKY S. and SASSEEN T.
Abstract (from CDS):
We present high resolution spectral observations of the absorption lines of CaII and NaI associated with the circumstellar disk surrounding the star β Pictoris. The observations were taken over a four night period in January 1996 and reveal substantial profile variability between successive nights. High velocity absorption features at velocities of +58km/s were observed in the CaII data, but were not present in the NaI profiles. An unusually high CaII: NaI ratio of ∼150:1 was found for the central, stable V=+22km/s component.
Abstract Copyright: ∼
Journal keyword(s): stars: circumstellar matter - stars: individual: beta Pic
Simbad objects: 2
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