SPECTRAL VARIATIONS OF DY CEN

Authors
GIRIDHAR S RAO NK LAMBERT DL
Citation
S. Giridhar et al., SPECTRAL VARIATIONS OF DY CEN, Journal of astrophysics and astronomy, 17(1-2), 1996, pp. 23-40
Citations number
11
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Journal of astrophysics and astronomy → ACNP
ISSN journal
02506335
Volume
17
Issue
1-2
Year of publication
1996
Pages
23 - 40
Database
ISI
SICI code
0250-6335(1996)17:1-2<23:SVODC>2.0.ZU;2-1
Abstract
Two high resolution spectra of the hot RCrB star DY Cen in the red reg ion are compared. The photospheric absorption lines show a radial velo city variation of 12 km s(-1) between 1989 July and 1992 May. Emission components to some CII lines present in 1989 are almost entirely abse nt in 1992. Nebular forbidden lines of [OI], [NII] and [SII] appear un changed from 1989 to 1992.