dc.contributor.author |
Giridhar, S |
|
dc.contributor.author |
Molina, R |
|
dc.contributor.author |
Arellano Ferro, A |
|
dc.contributor.author |
Selvakumar, G |
|
dc.date.accessioned |
2010-03-19T15:35:39Z |
|
dc.date.available |
2010-03-19T15:35:39Z |
|
dc.date.issued |
2010-07 |
|
dc.identifier.citation |
Monthly Notices of the Royal Astronomical Society, Vol. 406, No. 1, pp. 290–306 |
en |
dc.identifier.issn |
0035-8711 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/5078 |
|
dc.description |
Restricted Access |
|
dc.description.abstract |
An abundance analysis has been conducted for a sample of nine post-AGB candidate stars; eight of them have not been explored before.We find four very promising objects
like HD 105262, HD 53300 and CpD−62o5428 among them. We find strong evidence
of dust-gas separation through selective depletion of refractive elements in HD 105262. The same effect is also observed in HD 53300, CpD−62o5428 and HD 114855 although
abundance peculiarities are relatively smaller for the last two stars. We find strong enrichment of nitrogen for HD 725, HD 842, HD 1457, HD 9233 and HD 61227 but no
further evidence to support their post-AGB nature. We have compared the observed [N/C] ratios of these stars with the predictions of evolutionary models which include the rotation induced mixing. |
en |
dc.language.iso |
en |
en |
dc.publisher |
Wiley-Blackwell |
en |
dc.rights |
© Royal Astronomical Society |
en |
dc.subject |
Post-AGB Stars |
en |
dc.subject |
Abundances |
en |
dc.subject |
Circumstellar Matter: Stars |
en |
dc.title |
Chemical composition of A–F type post-AGB candidates |
en |
dc.type |
Article |
en |