Circumstellar absorption and intrinsic colours of massive stars

Details Circumstellar absorption and intrinsic colours of massive stars Circumstellar absorption and intrinsic colours of massive stars

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....91...53a&link_type=abstract

Astronomy and Astrophysics, vol. 91, no. 1-2, Nov. 1980, p. 53-58.

Astronomy and Astrophysics

Astrophysics

4

Hertzsprung-Russell Diagram, O Stars, Stellar Envelopes, Stellar Evolution, Supermassive Stars, Atmospheric Attenuation, Extreme Ultraviolet Radiation, Magellanic Clouds

Scientific paper

The reality of significant amounts of circumstellar obscuration for massive stars is discussed. At the same time, the question of the possible incorrectness of currently adopted data for intrinsic color indices of O stars is examined. The work is based primarily on recent data for stars in the Large Magellanic Cloud and on new observational results for the galactic stellar aggregate surrounding HD 101205. For the high-luminosity stars in the Large Magellanic Cloud only marginal effects of possible circumstellar obscuration may be traced, whereas for the galactic stellar aggregate no such effects are noted. There is no convincing overall indication that currently adopted intrinsic colors for O stars should be significantly in error.

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