SIMBAD references

1996A&A...312L..17H - Astronomy and Astrophysics, volume 312L17-20 (1996/8-1)

Shell lines in 48 Lib: The discovery of narrow optical absorption components (NOACs).

HANUSCHIK R.W. and VRANCKEN M.

Abstract (from CDS):

We report on the detection of extremely narrow satellite absorption features in Fe II shell lines of the Be-shell star 48 Lib. These features are variable in radial velocity and depth on a timescale of less than a day. We discuss the origin of these features and speculate that they either are caused by co-rotating clumps in the disk, or by higher-order distortions in the global density wave hosted by the disk.

Abstract Copyright: ∼

Journal keyword(s): line profiles - Be stars - circumstellar matter

Simbad objects: 1

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