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Probing the Galactic s-process nucleosynthesis using barium stars

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dc.contributor.author Goswami, A.
dc.contributor.author Jameela, S
dc.date.accessioned 2020-11-26T15:42:53Z
dc.date.available 2020-11-26T15:42:53Z
dc.date.issued 2019-10
dc.identifier.citation Bulletin de la Societe Royale des Sciences de Liege, Vol. 88, pp. 215-223 en_US
dc.identifier.issn 0037-9565
dc.identifier.uri http://prints.iiap.res.in/handle/2248/7413
dc.description Open Access © Societe Royale des Sciences de Liege https://doi.org/10.25518/0037-9565.8860 en_US
dc.description.abstract The origin and evolution of neutron-capture elements in our Galaxy is poorly understood. In this work, we have attempted to understand the Galactic s-process nucleosynthesis using barium stars as probes. We have performed high resolution spectroscopic analysis for three barium stars HD 36650, HD 207585 and HD 219116. The analysis of HD 219116 is based on HCT/HESP data at a resolution of 60,000 covering a wavelength region 3530-9970 Å. For HD 36650, we have used the FEROS spectrum at a resolution of 48,000 covering the wavelength region 3520-9200 Å. For HD 207585, the spectrum from VLT/UVES at a resolution of 48,000 covering the wavelength region 3290-6650 Å is used. Our analysis clearly shows that the surface chemical composition of these barium stars are enriched by s-process nucleosynthesis products coming from their former companion low-mass AGB stars. A discussion on the distribution of abundance ratios based on the existing nucleosynthesis theories is presented. en_US
dc.language.iso en en_US
dc.publisher Societe Royale des Sciences de Liege en_US
dc.subject stars en_US
dc.subject abundance en_US
dc.subject chemically peculiar en_US
dc.subject nucleosynthesis en_US
dc.title Probing the Galactic s-process nucleosynthesis using barium stars en_US
dc.type Article en_US


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