Hostname: page-component-8448b6f56d-qsmjn Total loading time: 0 Render date: 2024-04-24T05:01:58.633Z Has data issue: false hasContentIssue false
  • English
  • Français

The effective temperatures of the O stars

Published online by Cambridge University Press:  14 August 2015

Donald C. Morton
Donald C. Morton*
Affiliation:
Princeton University Observatory, Princeton, N.J., U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Effective temperatures of O-type stars imbedded in diffuse nebulae are derived from measurements of Hα and radio fluxes from the nebulae and the apparent magnitudes of the stars. Accurate model atmospheres, with ultraviolet line blanketing where appropriate, are used for the theoretical relation between effective temperature and the ratio of Lyman continuum to visual stellar fluxes. Although there is considerable scatter in the results, an average temperature of 48000 K is found for spectral type O5, 40000 K for O6, and 35000 K for O7.

Type
Part I: Stellar Fluxes
Information
Symposium - International Astronomical Union , Volume 36: Ultraviolet Stellar Spectra and Related Ground-Based Observations , 1970 , pp. 59 - 63
Copyright
Copyright © Reidel 1970 

References

Bradley, P. T. and Morton, D. C.: 1969, Astrophys. J. 156, 687.Google Scholar
Brown, R. Hanbury, Davis, J., Allen, L. R., and Rome, J. M.: 1967, Monthly Notices Roy. Astron. Soc. 137, 393.CrossRefGoogle Scholar
Carruthers, G. R.: 1968, Astrophys. J. 151, 269.Google Scholar
Carruthers, G. R.: 1969, Astrophys. Space Sci. 5, 387.Google Scholar
Chalonge, D. and Divan, L.: 1952, Ann. Astrophys. 15, 201.Google Scholar
Davis, J., Morton, D. C., Allen, L.R., and Brown, R. Hanbury: 1969, to be submitted to Monthly Notices Roy. Astron. Soc. Google Scholar
Hickok, F. R. and Morton, D. C.: 1968, Astrophys. J. 152, 203.Google Scholar
Hjellming, R. M.: 1968, Astrophys. J. 154, 533.Google Scholar
Mihalas, D.: 1966, Astrophys. J. Suppl. Ser. 13, 1.Google Scholar
Morton, D. C. and Adams, T. F.: 1968, Astrophys. J. 151, 611.CrossRefGoogle Scholar
Morton, D. C.: 1969, Astrophys. J. 158, 629.Google Scholar
Pottasch, S. R.: 1965, Vistas in Astronomy, Vol. 6 (ed. by Beer, A.), Pergamon Press, Oxford, p. 149.Google Scholar
Smith, A. M.: 1967, Astrophys. J. 147, 158, and private communication.Google Scholar
Stecher, T. P.: 1968, Wolf-Rayet Stars (ed. by Gebbie, K. B. and Thomas, R. N.), Nat. Bureau of Standards Special Publ. 307.Google Scholar