Hostname: page-component-6bf8c574d5-9nwgx Total loading time: 0 Render date: 2025-02-20T15:14:36.516Z Has data issue: false hasContentIssue false
  • English
  • Français

Luminosities of LMC OB Stars

Published online by Cambridge University Press:  14 August 2015

David Crampton
David Crampton*
Affiliation:
Dominion Astrophysical Observatory, Herzberg Institute of Astrophysics, National Research Council Canada

Extract

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.

Our knowledge of the spectra of stars in other galaxies is essentially limited to those which are extremely luminous. In the LMC, slit spectra of ~ 200 stars have been obtained (Feast, Thackeray and Wesselink 1960, Ardeberg et al. 1972) down to Using an objective prism technique, Brunet et al. (1975) have been able to detect 272 OB stars with in the LMC. At the fainter limit this survey should include relatively normal 0 and early B dwarfs and giants. The principal aim of the present investigation was to obtain spectra of these stars for comparison with galactic stars and to apply the techniques of MK classification and measurement of Hγ equivalent widths to determine their luminosities and hence a distance modulus to the LMC.

Type
Part VI: Galaxies and Miscellaneous Subjects
Information
Symposium - International Astronomical Union , Volume 80: The HR Diagram , 1978 , pp. 259 - 262
Copyright
Copyright © Reidel 1978 

References

Ardeberg, A., Brunet, J.-P., Maurice, E. and Prevot, L. (1972). Astron. Astrophys. Supp. 6, 249.Google Scholar
Balona, L. and Crampton, D. (1974). Mon. Not. R. Astron. Soc. 166, 203.CrossRefGoogle Scholar
Blaauw, A. (1963). In Basic Astronomical Data, Strand, K. Aa., ed., U. of Chicago Press, Chicago, p. 383.Google Scholar
Brunet, J.P., Imbert, M., Martin, N., Mianes, P., Prevot, L., Rebeirot, E. and Rousseau, J. (1975). Astron. Astrophys. Suppl. 21, 109.Google Scholar
Conti, P.S., and Alschuler, W.R. (1971). Astrophys. J. 170, 315.CrossRefGoogle Scholar
Crampton, D. and Georgelin, Y.M. (1975). Astron. Astrophys. 40, 317.Google Scholar
Crawford, D.L. (1971). In Dark Nebulae, Globules and Protostars, Lynds, B.T., ed., U. of Arizona Press, Tucson, p. 27.Google Scholar
Crawford, D.L. (1977). preprint.Google Scholar
Feast, M.W., Thackeray, A.D. and Wesselink, A.J. (1960). Mon. Not. R. Astron. Soc. 121, 25.CrossRefGoogle Scholar
FitzGerald, M.P. (1970). Astron. Astrophys. 4, 234.Google Scholar
Hutchings, J.B. (1966). Mon. Not. R. Astron. Soc. 132, 433.CrossRefGoogle Scholar
van den Bergh, S. (1976). IAU Colloquium No. 37, Redshift and Expansion of the Universe, Westerlund, B.E. and Balkowski, C., eds., to be published.Google Scholar
Walborn, N.R. (1972). Astron. J. 77, 312.CrossRefGoogle Scholar
Walborn, N.R. (1973). Astron. J. 78, 1071.CrossRefGoogle Scholar