Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorThévenin, F-
dc.contributor.authorParthasarathy, M-
dc.contributor.authorJasniewicz, G-
dc.identifier.citationAstronomy and Astrophysics, Vol. 359, No. 1, pp.138 - 142en
dc.description.abstractA LTE analysis of medium resolution spectra of HD 179821 has been made. Derived atmospheric parameters of HD 179821 are K, and [Fe/H]=-0.5. The position of the star in the H-R diagram, its high radial velocity (Vr=100 km s-1), its far infrared excess similar to PNe and its chemical composition suggest that HD 179821 is a low mass post-AGB carbon-poor supergiant and not a population I massive red supergiant. The underabundance of carbon and of the s-process element zirconium shows that HD 179821 has not gone through the third dredge-up. We emphasize the similarity of the chemical pattern of the post-AGB star HD 179821 and the C-poor halo PN DDDM-1.en
dc.format.extent314213 bytes-
dc.publisherEuropean Southern Observatoryen
dc.subjectStars: Abundancesen
dc.subjectStars: Fundamental Parametersen
dc.subjectStars: Individual: Hd 179821en
dc.subjectStars: AGB and Post-AGBen
dc.titleChemical composition of HD 179821 (IRAS 19114+0002)en
Appears in Collections:IIAP Publications

Files in This Item:
File Description SizeFormat 
Thévenin F.pdf306.85 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.