Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Amplitude ratios of several groups of variable stars

  • 28 Accesses

  • 2 Citations

Abstract

The observed positions of classical cepheids, RR Lyrae stars, δ Scuti stars and dwarf cepheids in the logg-logT e plane form a continuous sequence, thereby defining the location of maximum instability. The amplitude ratio (the ratio of radial velocity amplitude to light amplitude) is small for variables at the upper end of the instability strip and increases almost linearly towards the lower end of the strip. The theory of radial pulsation predicts the trend of this correlation.

This is a preview of subscription content, log in to check access.

References

  1. Baker, N. and Kippenhahn, R.: 1965,Astrophys. J. 142, 868.

  2. Bessell, M. S.: 1967,Astrophys. J. Letters 149, L67.

  3. Bessell, M. S.: 1969a,Astrophys. J. Suppl. 18, 167.

  4. Bessell, M. S.: 1969b,Astrophys. J. Suppl. 18, 195.

  5. Bidelman, W. P.: 1947,Astrophys. J. 106, 135.

  6. Böhm-Vitense, E.: 1958,Z. Astrophys. 46, 108.

  7. Bonsack, W. K.: 1957,Astrophys. J. 126, 291.

  8. Breger, M. and Kuhi, L. V.: 1970,Astrophys. J. 160, 1129.

  9. Caster, J. I.: 1968,Astrophys. J. 154, 793.

  10. Clube, S. V. M., Evans, D. S., and Jones, D. H. P.: 1969,Mem. Roy. Astron. Soc. 72, 101.

  11. Christy, R. F.: 1966a,Ann. Rev. Astron. Astrophys. 4, 353.

  12. Christy, R. F.: 1966b,Astrophys. J. 144, 108.

  13. Churms, J. and Evans, D. S.: 1961,Observatory 81, 25.

  14. Churms, J. and Evans, D. S.: 1962,Observatory 82, 20.

  15. Cox, J. P., Cox, A. N., Olsen, K. H., King, S. D., and Eilers, D. D.: 1966,Astrophys. J. 144, 1038.

  16. Danziger, I. J. and Dickens, R. J.: 1967,Astrophys. J. 149, 55.

  17. Eggen, O. J.: 1957,Monthly Notices Roy. Astron. Soc. 117, 406.

  18. Hardie, R. H. and Geilker, C. D.: 1958,Astrophys. J. 127, 606.

  19. Hardie, R. H. and Lott, S. H.: 1961,Astrophys. J. 133, 71.

  20. Hardie, R. H. and Tolbert, C. R.: 1961,Astrophys. J. 134, 581.

  21. Hellerich, J.: 1937,Astron. Nachr. 261, 281.

  22. Herbig, G. H.: 1949,Astron. J. 110, 156.

  23. King, D. S., Cox, J. P., and Eilers, D. D.: 1966,Astrophys. J. 144, 1069.

  24. Kuhi, L. V. and Danziger, I. J.:Astrophys. J. 149, 47.

  25. Kurochkin, N. E.: 1959,Soviet Astron.-A. J. 3, 676.

  26. Leung, K. C.: 1968,Astrophys. Space Sc. 2, 302.

  27. Leung, K. C. and Wehlau, W.: 1967,Astrophys. J. 149, 39.

  28. Oke, J. B.: 1961a,Astrophys. J. 133, 90.

  29. Oke, J. B.: 1961b,Astrophys. J. 134, 214.

  30. Oke, J. B.: 1966,Astrophys. J. 145, 468.

  31. Oke, J. B. and Bonsack, S. J.: 1960,Astrophys. J. 132, 417.

  32. Oke, J. B., Giver, L. P., and Searle, L.: 1962,Astrophys. J. 136, 393.

  33. Preston, G. W. and Paczynski, B.: 1964,Astrophys. J. 140, 181.

  34. Simon, N. and Stothers, R.: 1970,Astronomy Astrophys. 6, 183.

  35. Struve, O.: 1949,Astron. J. 54, 137.

  36. Walraven, Th.: 1955,Bull. Astron. Inst. Neth. 12, 223.

  37. Wilson, O. C. and Walker, M. F.: 1956,Astrophys. J. 124, 325.

  38. Woltjer, L.: 1956,Bull. Astron. Inst. Neth. 13, 58.

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Leung, K. Amplitude ratios of several groups of variable stars. Astrophys Space Sci 8, 222–226 (1970). https://doi.org/10.1007/BF00650884

Download citation

Keywords

  • Radial Velocity
  • Amplitude Ratio
  • Variable Star
  • Velocity Amplitude
  • Radial Pulsation