The angular diameters, effective temperatures, radii, and luminosities of 10 Wolf-Rayet stars

Details The angular diameters, effective temperatures, radii, and luminosities of 10 Wolf-Rayet stars The angular diameters, effective temperatures, radii, and luminosities of 10 Wolf-Rayet stars

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...266..718u&link_type=abstract

Astrophysical Journal, Part 1, vol. 266, Mar. 15, 1983, p. 718-731.

Astronomy and Astrophysics

Astrophysics

58

Stellar Luminosity, Stellar Spectrophotometry, Stellar Structure, Stellar Temperature, Ultraviolet Spectra, Wolf-Rayet Stars, Continuous Spectra, Diameters, Hot Stars, Iue, Planetary Nebulae, Radiant Flux Density, Radii, Stellar Atmospheres, Stellar Mass Ejection, Supergiant Stars

Scientific paper

The effective temperature of a normal star with an absorption-line spectrum is a parameter which represents the total amount of radiative energy emerging from each square centimeter of surface of the star. Effective temperatures have been obtained for 10 Wolf-Rayet stars by means of ultraviolet energies determined from high-resolution International Ultraviolet Explorer (IUE) spectra and energies determined from observations made in the visible range. It is essential to use high-resolution IUE spectra in order to resolve the continuum from many emission lines which are present, particularly shortward of 1900 A. The results confirm what was found earlier, namely that the effective temperatures of Wolf-Rayet stars are similar to those of early B stars. The effective temperature of the central star of the planetary nebula BD 30 deg 3639, HD 184738, is found to be 18,000 K.

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