UV observations of the intermediate helium star CPD-46 deg 3093

Details UV observations of the intermediate helium star CPD-46 deg 3093 UV observations of the intermediate helium star CPD-46 deg 3093

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...101..269h&link_type=abstract

Astronomy and Astrophysics, vol. 101, no. 2, Aug. 1981, p. 269-272.

Astronomy and Astrophysics

Astronomy

3

B Stars, Stellar Spectra, Ultraviolet Astronomy, Ultraviolet Spectra, Absorption Spectra, Iue, Stellar Atmospheres

Scientific paper

UV spectrograms of CPD-46 deg 3093 have been obtained with IUE in low resolution. No evidence for mass loss can be found at this resolution. A synthetic spectrum, calculated in LTE and including 800 atomic transitions matches the observations. Also the UV Si III/Si IV ionization equilibrium is reproduced as well as the Stromgren colors. The atmospheric parameters are T(eff) equals 26,000 K, log g equals 3.95 and n(He/n(H) equals 0.37 (by number) (Lange, 1977).

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