Spectral Variations of DY Cen
Abstract
Two high resolution spectra of the hot RCrB star DY Cen in the red region are compared. The photospheric absorption lines show a radial velocity variation of 12 kms-1 between 1989 July and 1992 May. Emission components to some CII lines present in 1989 are almost entirely absent in 1992. Nebular forbidden lines of [OI], [NII] and [SII] appear unchanged from 1989 to 1992
- Publication:
-
Journal of Astrophysics and Astronomy
- Pub Date:
- June 1996
- DOI:
- 10.1007/BF02709343
- Bibcode:
- 1996JApA...17...23G
- Keywords:
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- Hot RCrB stars;
- radial velocity;
- photospheric and nebular lines