Astron. Astrophys. 324, L65-L68
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Letter to the Editor
The Chemical Composition of Sakurai's Object
Tõnu Kipper1 and Valentina G. Klochkova2
1Tartu Observatory, T oravere, EE2444, Estonia
Received 25 February 1997 / Accepted 3 June 1997
The atmospheric parameters and elemental abundances have been derived for Sakurai's object. The atmosphere of the star was found to be H deficient with enhanced carbon and s-process abundances. The effective temperature is Teff = 7250 K, logarithmic gravity, , and the microturbulent velocity, km s-1. These abundances and atmospheric parameters are close to the majority of cool R CrB stars.
The chemical composition, fast brightening from the preoutburst state and the presence of PN indicates that Sakurai's object is a final helium flash object.
Key words: stars: atmospheres-stars: carbon-stars:
© European Southern Observatory (ESO) 1997