Spectroscopy of HD 168625 (IRAS 18184-1623)

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4644

Title:	Spectroscopy of HD 168625 (IRAS 18184-1623)
Authors:	García, L. P Sivarani, T Parthasarathy, M Manchado, A
Keywords:	Spectroscopy of HD 168625 IRAS 18184-1623
Issue Date:	Aug-2001
Publisher:	Kluwer Academic Publishers
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. 309 – 312
Series/Report no.:	Astrophysics and Space Science Library; Vol. 265
Abstract:	HD 168625 (B9-A0 Ia) was classified as a post-AGB star and also as a luminous blue variable. We have analysed the high resolution optical spectra of HD 168625 and derived the atmospheric parameters and the chemical composition. We obtained Teff = 15000K, log g = 2.5, xit = 6km/s and [M/H] = 0.0, and estimated the chemical composition. We find [C/H] = -0.3 +/- 0.1, [N/H] = 0.5 +/- 0.1, [O/H] = 0.0 +/- 0.1, [Mg/H] = -0.3 +/- 0.2, [S/H] = -0.4 +/- 0.1, [Si/H] = -0.5 +/- 0.1 and [Ne/H] = 0.8 +/- 0.2. HD 168625 has overabundance of nitrogen and underabundance of carbon. The oxygen abundance is solar. This indicates mixing of CNO cycle burning products to the surface.
Description:	Restricted Access
URI:	http://hdl.handle.net/2248/4644
ISBN:	0-7923-7145-3
Appears in Collections:	IIAP Publications

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