Spectroscopic observations of the rapid rotating post-AGB star IRAS 05381+1012
Observatório Nacional, Rua José Cristino 77, CEP 20921-400, São Cristóvão, Rio de Janeiro-RJ, Brazil e-mail: email@example.com
Accepted: 15 January 2006
We report on the high-resolution stellar parameters and abundance analysis of the rapidly rotating post-AGB star IRAS 05381+1012. Analysis of high-resolution spectra shows that IRAS 05381+1012 has an effective temperature of K and a surface gravity of corresponding to a spectral type G(2-3)I. These parameters result in an estimated luminosity of 970 and a distance of 2700 pc. We also show that IRAS 05381+1012 has a projected rotational velocity km s-1. The abundance analysis based on a few available lines reveals that this star is an iron-deficient object with . We also analyze the abundance pattern and compare it to other classes of stars with similar stellar parameters.
Key words: stars: AGB and post-AGB / stars: abundances
© ESO, 2006