Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/6583
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dc.contributor.authorSumangala Rao, S-
dc.contributor.authorGiridhar, S-
dc.date.accessioned2014-03-27T08:52:59Z-
dc.date.available2014-03-27T08:52:59Z-
dc.date.issued2014-04-
dc.identifier.citationRevista Mexicana de Astronomica y Astrofisica serie de conferencias, Vol. 50, pp. 49-65en
dc.identifier.issn0185-1101-
dc.identifier.urihttp://hdl.handle.net/2248/6583-
dc.descriptionOpen Accessen
dc.description.abstractWe have undertaken a comprehensive abundance analysis for a sample of relatively unexplored RV Tauri and RV Tauri like stars to further our understanding of post-Asymptotic Giant Branch (post-AGB) evolution. From our study based on high resolution spectra and a grid of model atmospheres, we find indications of mild s-processing for V820 Cen and IRAS 06165+3158. On the other hand, SU Gem and BT Lac exhibit the effects of mild dust-gas winnowing. We have also compiled the existing abundance data on RV Tauri objects and find that a large fraction of them are afflicted by dust-gas winnowing and aided by the present work, we find a small group of two RV Tauris showing mild s-process enhancement in our Galaxy. With two out of three reported s-process enhanced objects belonging to RV Tauri spectroscopic class C, these intrinsically metal-poor objects appear to be promising candidates to analyse the possible s-processing in RV Tauri stars.en
dc.language.isoenen
dc.publisherInstitute de Astronomiaen
dc.relation.urihttp://www.astroscu.unam.mx/~rmaa/en
dc.rights© Institute de Astronomiaen
dc.subjectStars: abundancesen
dc.subjectStars: AGB and post-AGBen
dc.subjectStars: variablesen
dc.titleChemical Compositions of RV Tauri Stars and Related Objectsen
dc.typeArticleen
Appears in Collections:IIAP Publications

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