Optical observations of the hot post-asymptotic giant branch star, HD 177566

Details Optical observations of the hot post-asymptotic giant branch star, HD 177566 Optical observations of the hot post-asymptotic giant branch star, HD 177566

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...291..851k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 291, no. 3, p. 851-855

Astronomy and Astrophysics

Astronomy

7

Asymptotic Giant Branch Stars, Atmospheric Models, Hot Stars, Stellar Atmospheres, Stellar Composition, Ultraviolet Spectra, Visible Spectrum, Abundance, Heavy Elements, Planetary Nebulae, Spectrum Analysis, Ultraviolet Astronomy

Scientific paper

An local thermodynamic equilibrium (LTE) model atmosphere analysis of optical and ultra-violet spectra is presented for a hot high galactic latitude star, HD 177566, previously identified as a post-asymptotic giant branch candidate from its ultra-violet spectrum. The derived atmospheric parameters and chemical composition confirm that HD 177566 is a low mass (M approximately equal to 0.55 solar mass)(post-AGB) star; a general heavy element underabundance of approximately -1.3 dex is found. The possibility that it is the central star of a young, compact planetary nebula is briefly discussed.

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