Properties of Symbiotic Stars from Studies in the Optical Region

  • Franco Ciatti
Part of the Astrophysics and Space Science Library book series (ASSL, volume 95)


The traditional definition of Symbiotic Stars (SS) is that of objects which display a combination spectrum (e.g.Merrill, 1950) that is emission lines requiring high-excitation conditions, superposed to the continuum and absorption features of a low-temperature star, most commonly an M-type giant. About one hundred of SS are known and listed today. It is any way apparent that the classification criteria are rather rough, and since the excitation varies from the simple Me to SS with coronal emission, it is not well defined where a clear division should be made. As a re sult, the available lists include a very heterogeneous set of objects, probably different phases in stellar evolution. Moreover it has been remarked that SS show a rather confusing variety in their spectroscopic and photometric behaviour. Different intensities of both absorption and emission lines are reported from star to star. These facts indicate a high degree of individuality among SS, which is partly cause and/or effect of the adopted definitions.


Monthly Notice Radial Velocity Curve Cool Component Symbiotic Star Nova Outburst 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Allen, D.A. 1978, IAU Colloquium No 46, Hamilton NZ.Google Scholar
  2. Allen, D.A. 1980a, Monthly Notices Roy.Astron.Soc. 190, 75.ADSGoogle Scholar
  3. Allen, D.A. 1980b, Monthly Notices Roy Astron.Soc. 192, 521.ADSGoogle Scholar
  4. Bath, G.T. 1977, Monthly Notices Roy.Astron.Soc. 178, 203.ADSGoogle Scholar
  5. Belyakina, T.S. 1979, Isvestia Crimskoi Astroph.Obs. 49, 133.ADSGoogle Scholar
  6. Boyarchuk, A.A. 1969, Non-periodic phenomena in variable stars, Budapest, page 395.Google Scholar
  7. Boyarchuk, A.A. 1974, IAU Symposium No 67, Moscow, page 377.Google Scholar
  8. Ciatti, F., D’0dorico, S., Mammano, A. 1974, Astron.Astrophys. 34, 181.ADSGoogle Scholar
  9. Ciatti, F., Mammano, A., Vittone, A. 1979, Astron.Astrophys. 79, 247.ADSGoogle Scholar
  10. Feast, M.W., Robertson, B.S.C., Catchpole, R.M. 1977, Monthly Notices Roy. Astron.Soc. 179, 499.ADSGoogle Scholar
  11. Hutchings, J.B., Cowley, A.P., Redman, R.O. 1975, Astrophys.J. 201, 404.ADSCrossRefGoogle Scholar
  12. Kwok, S., Purton, C.R., FitzGerald, P.M. 1978, Astrophys.J. 219, L 125.ADSCrossRefGoogle Scholar
  13. Kwok, S., Purton, C.R. 1979, Astrophys.J. 229, 187.ADSCrossRefGoogle Scholar
  14. Mammano, A., Ciatti, F. 1975, Astron.Astrophys. 39, 405.ADSGoogle Scholar
  15. Mammano, A., Rosino, L., Yildizdogdu, S. 1974, IAU Symposium No 67, page 401.ADSGoogle Scholar
  16. Merrill, P.W. 1950, Astrophys.J. 111, 484.ADSCrossRefGoogle Scholar
  17. Paczynsky, B., Rudak, B. 1980, Astron.Astrophys. 82, 349.ADSGoogle Scholar
  18. Sahade, J. 1965, IAU Colloquium on Variable Stars, Bamberg, page 140.Google Scholar
  19. Sahade, J. 1975, 20th Liege Colloque d’Astrophysique, page 303.Google Scholar
  20. Slovak, M.H., Africano, J. 1978, Monthly Notices Roy.Astron.Soc. 185, 591.ADSGoogle Scholar
  21. Swings, P. 1970, Spectroscopic Astrophysics, Univ.of Calif.Press, page 189.Google Scholar
  22. Swings, P., Struve, O. 1941, Astrophys.J. 93, 356.ADSCrossRefGoogle Scholar
  23. Thackeray, A.D. 1959, Monthly Notices Roy.Astron.Soc. 119, 629.ADSGoogle Scholar
  24. Tutukov, A.V., Yungel’son, L.R. 1976, Astrofizika 12, 521.ADSGoogle Scholar
  25. Walker, A.R. 1977, Monthly Notices Roy.Astron.Soc. 179, 587.ADSGoogle Scholar

Copyright information

© D. Reidel Publishing Company, Dordrecht, Holland 1982

Authors and Affiliations

  • Franco Ciatti
    • 1
  1. 1.Asiago Astrophysical ObservatoryItaly

Personalised recommendations