An analysis of the helium-weak stars HD 144334

Details An analysis of the helium-weak stars HD 144334 An analysis of the helium-weak stars HD 144334

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.218..279w&link_type=abstract

In ESA Fourth European IUE Conf. p 279-283 (SEE N84-35135 24-88)

Physics

Abundance, B Stars, Helium, Silicon, Stellar Atmospheres, Stellar Gravitation, Stellar Spectra, Stellar Temperature, Subdwarf Stars, Balmer Series, Iue, Stellar Evolution

Scientific paper

Low resolution IUE spectra of the helium-weak star HD 144334 are combined with S2/68 fluxes, and optical and infrared photometry. These data, using the infrared and total flux method, give Teff = 16,000K + or - 100K. From published Balmer line profiles the surface gravity is redetermined as log g = 4.10 + or - 0.05. Metallic ions in the high resolution IUE SWP spectra are identified, and the abundance determined for silicon, using Si III and Si IV lines, is found to be lower than the solar value.

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