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http://hdl.handle.net/2248/2267
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DC Field | Value | Language |
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dc.contributor.author | Giridhar, S | - |
dc.contributor.author | Arellano Ferro, A | - |
dc.contributor.author | Mathias, P | - |
dc.date.accessioned | 2008-05-07T09:30:54Z | - |
dc.date.available | 2008-05-07T09:30:54Z | - |
dc.date.issued | 2001 | - |
dc.identifier.citation | BASI, Vol. 29, No. 3, pp. 289 - 293 | en |
dc.identifier.uri | http://hdl.handle.net/2248/2267 | - |
dc.description.abstract | Our abundance analysis of this post-AGB candidate star confirms that the HD 172481 is indeed a post-AGB star. It belongs to an important, but relatively rare class of post-AGB stars showing Li I features in their spectra. The strength of OI triplet at 7774 Å confirms its high luminosity (log, (L/L?) ~ 4). It is moderately metal-poor with [Fe/H] of - 0.6 but shows significant enrichment of s-process elements indicating that the star has gone through the third dredge-up. We find C/O of ~ 0.4 for this star. Hot Bottom Burning scenario can explain the production of Li as well as the destruction of carbon via CN cycle that could prevent C/O ratio from exceeding one. | en |
dc.format.extent | 361423 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | en |
dc.publisher | Astronomical Society of India | en |
dc.relation.uri | http://adsabs.harvard.edu/abs/2001BASI...29..289G | en |
dc.subject | Li-rich | en |
dc.subject | AGB star | en |
dc.subject | HD 172481 | en |
dc.title | A Li-rich post-AGB star HD 172481 | en |
dc.type | Article | en |
Appears in Collections: | BASI Publications |
Files in This Item:
File | Description | Size | Format | |
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sunetra.pdf | 352.95 kB | Adobe PDF | View/Open |
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