Spectral variations of DY Cen |
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| Authors: | Sunetra Giridhar N. Kameswara Rao David L. Lambert |
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| Affiliation: | (1) Indian Institute of Astrophysics, 560034 Bangalore, India;(2) Department of Astronomy, University of Texas, 78712 Austin, TX, USA |
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| 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 |
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| Keywords: | Hot RCrB stars radial velocity photospheric and nebular lines |
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