Spectroscopy of post-AGB candidate HD 331319 (IRAS 19475+3119)

Sivarani, T; Parthasarathy, M; García, L. P; Manchado, A

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dc.contributor.author	Sivarani, T
dc.contributor.author	Parthasarathy, M
dc.contributor.author	García, L. P
dc.contributor.author	Manchado, A
dc.date.accessioned	2009-07-14T12:00:43Z
dc.date.available	2009-07-14T12:00:43Z
dc.date.issued	2001-08
dc.identifier.citation	Szczerba, R. and Garny, S. K., eds., Post-AGB objects as a phase of stellar evolution, Astrophysics and Space Science Library, Vol. 265, Proceedings of the Torun Workshop held July 5 - 7, 2000, pp. 301 - 304	en
dc.identifier.isbn	0-7923-7145-3
dc.identifier.uri	http://hdl.handle.net/2248/4639
dc.description	Restricted Access
dc.description.abstract	HD 331319 is a F3 Ib star with a detached cold circumstellar dust shell with far-IR colours similar to planetary nebulae. From an analysis of high resolution spectra using LTE stellar atmospheric models, we have derived the atmospheric parameters and the chemical composition of HD 331319. By matching the theoretical and the observed spectrum we obtained Teff = 7500K, log g = 0.5 and xit = 7 kms-1 and estimated [C/Fe] = 0.4 +/- 0.3, [N/Fe] = 1.4 +/- 0.5, [O/H] = 0.3 +/- 0.3, [Fe/H] = -0.2 +/- 0.3 We find that nitrogen is overabundant, oxygen and iron are nearly solar. The total C,N,O abundances with respect to iron indicate mixing due to the third dredge-up.	en
dc.language.iso	en	en
dc.publisher	Kluwer Academic Publishers	en
dc.relation.ispartofseries	Astrophysics and Space Science Library;Vol. 265
dc.relation.uri	http://adsabs.harvard.edu/abs/2001ASSL..265..301S	en
dc.subject	Spectroscopy of Post-AGB	en
dc.subject	HD 331319	en
dc.subject	IRAS 19475+3119	en
dc.title	Spectroscopy of post-AGB candidate HD 331319 (IRAS 19475+3119)	en
dc.type	Article	en