Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...324l..65k&link_type=abstract
Astronomy and Astrophysics, v.324, p.L65-L68
Astronomy and Astrophysics
Astrophysics
32
Stars: Atmospheres, Stars: Carbon, Stars: Individual: Sakurai'S Object
Scientific paper
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 T_eff_=7250K, logarithmic gravity, logg=1.0, and the microturbulent velocity, ξ_t_=7+/-1km/s. 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.
Kipper Tonu
Klochkova Valentina G.
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