Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/3418
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dc.contributor.authorGiridhar, S-
dc.contributor.authorArellano Ferro, A-
dc.date.accessioned2008-09-06T11:18:05Z-
dc.date.available2008-09-06T11:18:05Z-
dc.date.issued2005-11-
dc.identifier.citationAstronomy and Astrophysics, Vol. 443, No. 1, pp. 297 - 308en
dc.identifier.issn0004-6361-
dc.identifier.urihttp://hdl.handle.net/2248/3418-
dc.description.abstractWe have carried out abundance analysis for a sample of high galactic latitude supergiants in search of evolved stars. We find that HD 27381 has atmospheric parameters and an abundance pattern very similar to that of the post-AGB star HD 107369. HD 10285 and HD 25291 are moderately metal-poor and show the influence of mixing that has brought the products of NeNa cycle to the surface. The high galactic latitude B supergiant HD 137569 shows selective depletion of refractory elements normally seen in post-AGB stars. We find that the high velocity B type star HD 172324 shows moderate deficiency of Fe group elements but the CNO abundances are very similar to that of disk B supergiants. The observed variations in the radial velocities, transient appearance of emission components in hydrogen line profiles and doubling of O I lines at 7774 Å support the possibility of this star being a pulsating variable or a binary star.en
dc.language.isoenen
dc.publisherEDP Sciencesen
dc.relation.urihttp://arxiv.org/abs/astro-ph/0509061en
dc.relation.urihttp://dx.doi.org/10.1051/0004-6361:20041495en
dc.subjectStars: AGB And Post-AGBen
dc.subjectStars: Chemically Peculiaren
dc.subjectStars: Abundancesen
dc.subjectStars: Individual HD 10132en
dc.subjectHD 10285en
dc.subjectHD 12533en
dc.subjectHD 25291en
dc.subjectHD 27381en
dc.subjectHD 137569en
dc.subjectHD 159251en
dc.subjectHD 172324en
dc.titleChemical composition of evolved stars of high galactic latitudeen
dc.typeArticleen
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