Abstract
IRAS 10215-5916 was classified as a post-AGB star and also as a massive red supergiant. It was also found to be a spectroscopic binary. In our high resolution spectra we found molecular features from a cool star of T eff =3750K. We also see the spectral signature of a relatively hotter star of T eff =7250K. We found that both the components of the binary system are metal poor. From the theoretical spectrum synthesis we obtained [C/H]=−0.2±0.4, [O/H]=−1.0±0.4 and [Fe/H]=2.0±0.5 for the hot component of the binary system. The enhanced carbon abundance and metal poor characteristics show that the hot component of the binary system could be a post-AGB star.
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© 2001 Springer Science+Business Media Dordrecht
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Sivarani, T., Parthasarathy, M., García-Lario, P., Manchado, A. (2001). Spectroscopy of Post-AGB Candidate IRAS 10215-5916. In: Szczerba, R., Górny, S.K. (eds) Post-AGB Objects as a Phase of Stellar Evolution. Astrophysics and Space Science Library, vol 265. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-9688-6_47
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DOI: https://doi.org/10.1007/978-94-015-9688-6_47
Publisher Name: Springer, Dordrecht
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