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Astrophysics and Space Science

, Volume 70, Issue 2, pp 393–399 | Cite as

Spectrophotometric determination of the temperature of the cepheid SU Cassiopeiae

  • S. C. Joshi
  • B. S. Rautela
Article

Abstract

The effective temperature of the short period cepheid SU Cas has been determined from a comparison of its spectral scans with appropriate model atmospheres. Using this temperature and an independent Wesselink radius determination, the luminosity of the star has been redetermined. The pulsation mass and the evolutionary mass of the star have been discussed. The evolutionary to pulsation mass ratio comes out to be greater than unity.

Keywords

Atmosphere Effective Temperature Spectrophotometric Determination Model Atmosphere Evolutionary Mass 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Abt, H. A.: 1959,Astrophys. J. 130, 1021.Google Scholar
  2. Ardeberg, A. and Virdefers, B.: 1975,Astron. Astrophys. 39, 21.Google Scholar
  3. Balona, L. A.: 1977,Monthly Notices Roy. Astron. Soc. 178, 231.Google Scholar
  4. Becker, S. A., Iben, I., Jr. and Tuggle, R. S.: 1977,Astrophys. J. 218, 633.Google Scholar
  5. Canavaggia, R., Mianes, P. and Rousseau, J.: 1975,Astron. Astrophys. 43, 275.Google Scholar
  6. Carbon, D. F. and Gingerich, O.: 1969, in O. Gingerich (ed.),Proc. Third Harvard-Smithsonian Conference on Stellar Atmospheres, p. 377, Cambridge.Google Scholar
  7. Cogan, B. C.: 1978,Astrophys. J. 221, 635.Google Scholar
  8. Cox, A. N.: 1979,Astrophys. J. 229, 212.Google Scholar
  9. Cox, J. P., King, D. S. and Stellingwerf, R. F.: 1972,Astrophys. J. 171, 93.Google Scholar
  10. Dean, J. F., Warren, P. R. and Cousins, A. W.: 1978,Monthly Notices Roy. Astron. Soc. 183, 569.Google Scholar
  11. Fernie, J. D.: 1967,Astron. J. 72, 422.Google Scholar
  12. Frike, K., Stobie, R. S. and Strittmatter, P. A.: 1972,Astrophys. J. 171, 593.Google Scholar
  13. Gieren, W.: 1976,Astron. Astrophys. 47, 211.Google Scholar
  14. Hayes, D. S. and Latham, D. W.: 1975,Astrophys. J. 197, 593.Google Scholar
  15. Kukarkin, B. V., Kholopov, P. N., Efremov, Yu. N., Kukarkin, N. P., Kurochkin, N. E., Medvedeva, G. I., Perova, N. B., Fedorovich, V. P. and Frolov, M. S.: 1969,General Catalogue of Variable Stars, 3rd edition, Moscow.Google Scholar
  16. Mitchell, R. I., Iriarte, B., Steinmetz, D. and Johnson, H. L.: 1964,Bull. Obs. Tonantzintla Tacubaya,3, 153.Google Scholar
  17. Oke, J. B.: 1965,Ann. Rev. Astron. Astrophys. 3, 23.Google Scholar
  18. Parsons, S. B.: 1970,Warner and Swasey Observatory, Preprint No. 3.Google Scholar
  19. Pel, J. W.: 1978,Astron. Astrophys. 62, 75.Google Scholar
  20. Racine, R.: 1968,Astron. J. 73, 588.Google Scholar
  21. Rautela, B. S. and Joshi, S. C.: 1976,Astrophys. Space Sci. 40, 455.Google Scholar
  22. Sandage, A. and Tammann, G. A.: 1968,Astrophys. J. 151, 531.Google Scholar
  23. Schild, R. E.: 1977,Astron. J. 82, 337.Google Scholar
  24. Schmidt, E. G.: 1972,Astrophys. J. 174, 595.Google Scholar
  25. Whitford, A. E.: 1958,Astron. J. 63, 201.Google Scholar

Copyright information

© D. Reidel Publishing Co 1980

Authors and Affiliations

  • S. C. Joshi
    • 1
  • B. S. Rautela
    • 1
  1. 1.Uttar Pradesh State ObservatoryNaini TalIndia

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