Infrared photometry of southern Wolf-Rayet stars

Details Infrared photometry of southern Wolf-Rayet stars Infrared photometry of southern Wolf-Rayet stars

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...120...53p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 120, no. 1, April 1983, p. 53-57.

Astronomy and Astrophysics

Astronomy

17

Infrared Astronomy, Infrared Photometry, Southern Sky, Stellar Spectrophotometry, Wolf-Rayet Stars, Emission Spectra, Late Stars, Line Spectra, Near Infrared Radiation, Radiant Flux Density, Spectral Energy Distribution, Stellar Winds, Wind Velocity

Scientific paper

New JHKL photometric observations of forty-nine southern Wolf-Rayet stars are presented. After correcting the magnitudes for emission line contributions, the authors discuss the position of the different subtypes in a H-K/K-L colour diagram. Excepting the late type WC stars, the authors found no evidence for a relationship between near infrared excess and spectral type. Comparison of the observed flux distribution with the empirical model of Hartmann and Cassinelli suggests a variation from star to star in the velocity law of the wind. The results appear to indicate that in the near infrared range, the different subtypes constitute heterogeneous groups.

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