The IRAS infrared spectrum of Zeta Puppis (O4If)

Details The IRAS infrared spectrum of Zeta Puppis (O4If) The IRAS infrared spectrum of Zeta Puppis (O4If)

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...134l..17l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 134, no. 2, May 1984, p. L17-L20.

Astronomy and Astrophysics

Astronomy

30

Infrared Spectra, Infrared Stars, O Stars, Stellar Spectra, Stellar Winds, Supergiant Stars, Early Stars, Infrared Astronomy Satellite, Spectral Energy Distribution, Stellar Coronas, Stellar Mass Ejection, Stellar Temperature

Scientific paper

The infrared spectrum of Zeta Pup (O4If, HD 66811) obtained with the IRAS satellite is compared with predicted flux distribution for various stellar-wind models with and without coronae. The observations do not show the presence of a bump in the IR-spectrum expected from a hot or warm corona at the base of the wind. The observations are in excellent agreement with the predicted flux distribution for cold-stellar-wind models. This shows that Zeta Pup does not have a thin corona, nor a warm region close to the star. It suggests that the mass loss from hot stars is due to radiation pressure only.

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