A-type central stars of planetary nebulae - II. The central stars of NGC 2346, He 2-36 and NGC 3132.
Abstract
Summary. Spectrograms, scanner, uvby and ANS ultraviolet measurements of the central stars of NGC 2346, He 2-36 and NGC 3132 are analysed. The observations suggest that the first one is a foreground horizontal-branch star, and the second is above the horizontal branch, presumably in a rapid evolutionary phase. Both objects are probably variable. The central star of NGC 3132 is a slightly evolved main-sequence star with a hot visual companion. The evolutionary status of this system is briefly discussed.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- December 1978
- DOI:
- 10.1093/mnras/185.3.647
- Bibcode:
- 1978MNRAS.185..647M
- Keywords:
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- A Stars:Atmospheres;
- A Stars:Central Stars;
- Central Stars:Planetary Nebulae