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Spectroscopic Segregation in Binary Systems*

Published online by Cambridge University Press:  12 April 2016

Jon Darius
Jon Darius*
Affiliation:
Science Museum and University College, London, U.K.

Abstract

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Binary systems displaying spectroscopic segregation, whereby line spectra of the two components overlap little or not at all in wavelength, account for a small subset of LUV objects (late-type ultraviolet). Optical and ultraviolet (IUE) spectra for one such system, HD 15351 + UV0225 + 13 (F4-5 V + sdO), are presented and a few related systems described. The role of LUV objects in establishing an absolute luminosity calibration for hot subdwarfs is emphasized, along with their significance for stellar evolution. A search strategy for additional spectroscopically segregated LUV objects is outlined.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 80: Double Stars, Physical Properties and Generic Relations , 1984 , pp. 273 - 279
Copyright
Copyright © Reidel 1984

Footnotes

*

Paper presented at the Lembang-Bamberg IAU Colloquium No. 80 on ‘Double Stars: Physical Properties and Generic Relations', held at Bandung, Indonesia, 3-7 June, 1983.

References

Allen, C. W.: 1973, Astrophysical Quantities, 3rd ed., Athlone Press, London.Google Scholar
Barbier, R., Dossin, F., Jaschek, G., Jaschek, M., Klutz, M., Swings, J. P., and Vreux, J. M.: 1978, Astron. Astrophys. 66, L9.Google Scholar
Berger, J. and Fringant, A.-M.: 1980, Astron. Astrophys. 85, 367.Google Scholar
Darius, J. and Whitelock, P. A.: 1978, Nature 275, 428.Google Scholar
Davis, R. J., Deutschman, W. A., and Haramundanis, K.: 1973, Celescope Catalog of Ultraviolet Stellar Observations, Smithsonian Institution Press, Washington, D.C. Google Scholar
Doyle, A. C.: 1890, The Sign of Four, Spencer Blackett, London.Google Scholar
Dworetsky, M. M., Lanning, H. H., Etzel, P. B., and Patenaude, D. J.: 1977, Monthly Notices Roy. Astron. Soc. 181, 13P.Google Scholar
Gilra, D. P., Wesselius, P. R., and Rao, N. K.: 1980, Proceedings of Second European IUE Conference, ESA SP-157, p. 227.Google Scholar
Goy, G.: 1977, Astron. Astrophys. 57, 449.Google Scholar
Goy, G.: 1980, Astron. Astrophys. 88, 370.Google Scholar
Greenstein, J. L. and Sargent, A. I.: 1974, Astrophys. J. Suppl. 28, 157.Google Scholar
Houk, N.: 1978, University of Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars, Vol. 2, Department of Astronomy, University of Michigan, Ann Arbor.Google Scholar
Houk, N. and Cowley, A. P.: 1975, University of Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars, Vol. 1, Department of Astronomy, University of Michigan, Ann Arbor.Google Scholar
Jaschek, M. and Jaschek, C.: 1980, Astron. Astrophys. Suppl. 42, 115.Google Scholar
Kilkenny, D., Hilditch, R. W., and Penfold, J. E.: 1978, Monthly Notices Roy. Astron. Soc. 183, 523.Google Scholar
Kilkenny, D., Hill, P. W., and Penfold, J. E.: 1981, Monthly Notices Roy. Astron. Soc. 194, 429.Google Scholar
Mikami, T.: 1978, Pubi. Astron. Soc. Japan 30, 207.Google Scholar
Parsons, S. B., Wray, J. D., Kondo, Y., Henize, K. G., and Benedict, G. F.: 1976, Astrophys. J. 203, 435.Google Scholar
Stickland, D. J. and Harmer, D. L.: 1978, Astron. Astrophys. 70, L53.Google Scholar
Thompson, G. I., Nandy, K., Jamar, C., Monfils, A., Houziaux, L., Camochan, D. J., and Wilson, R.: 1978, Catalogue of Stellar Ultraviolet Fluxes, Science Research Council, U.K. Google Scholar
Walker, A. R.: 1981, Monthly Notices Roy. Astron. Soc. 197, 241.CrossRefGoogle Scholar
Wesselius, P. R., van Duinen, R. J., de Jonge, A. R. W., Aalders, J. W. G., Luinge, W., and Wildeman, K. J.: 1982, Astron. Astrophys. Suppl. 49, 427.Google Scholar
Whitelock, P. A.: 1977, unpublished data.Google Scholar