Please use this identifier to cite or link to this item:
http://hdl.handle.net/2248/2157
Title: | R Coronae Borealis stars at minimum light - UW Cen |
Authors: | Kameswara Rao, N Reddy, B. E Lambert, D. L |
Keywords: | stars: individual: UW Cen stars: variables: other |
Issue Date: | Dec-2004 |
Publisher: | Blackwell Publishing |
Citation: | Monthly Notices of the Royal Astronomical Society, Vol. 355, No. 3, pp. 855 – 861 |
Abstract: | Two high-resolution optical spectra of the R Coronae Borealis (R CrB) star UW Cen in decline are discussed. A spectrum from mid-1992 when the star had faded by 3 mag shows just a few differences with the spectrum at maximum light. The ubiquitous sharp emission lines seen in R CrB at a similar drop below maximum light are absent. In contrast, a spectrum from mid-2002 when the star was 5 mag below maximum light shows an array of sharp emission lines and a collection of broad emission lines. Comparisons are made with spectra of R CrB obtained during the deep 1995–1996 minimum. The many common features are discussed in terms of a torus-jet geometry. |
URI: | http://hdl.handle.net/2248/2157 |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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R Coronae Borealis stars at minimum light - UW Cen | 195.45 kB | Adobe PDF | ![]() View/Open |
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