SHELL LINES IN 48-LIB - THE DISCOVERY OF NARROW OPTICAL-ABSORPTION COMPONENTS (NOACS)

Authors
HANUSCHIK RW VRANCKEN M
Citation
Rw. Hanuschik et M. Vrancken, SHELL LINES IN 48-LIB - THE DISCOVERY OF NARROW OPTICAL-ABSORPTION COMPONENTS (NOACS), Astronomy and astrophysics, 312(1), 1996, pp. 17-20
Citations number
11
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
312
Issue
1
Year of publication
1996
Pages
17 - 20
Database
ISI
SICI code
0004-6361(1996)312:1<17:SLI4-T>2.0.ZU;2-E
Abstract
We report on the detection of extremely narrow satellite absorption fe atures in Fe II shell lines of the Be-shell star 48 Lib. These feature s are variable in radial velocity and depth on a timescale of less tha n a day. We discuss the origin of these features and speculate that th ey either are caused by co-rotating clumps in the disk, or by higher-o rder distortions in the global density wave hosted by the disk.