, Volume 16, Issue 3, pp 262–270 | Cite as

An unusual variable star: CH Cyg

  • L. S. Luud


The existing observational data on CH Cyg agrees well with a model consisting of a semiregular M6 III giant and a white dwarf with a transient accretion disk formed at the time of the large maxima. The model can be tested by means of x-ray and speckle-interferometric observations.


Observational Data Accretion Disk White Dwarf Variable Star Large Maximum 
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.

Literature Cited

  1. 1.
    A. J. Deutsch, I. A. U. Circ., No. 2020 (1967).Google Scholar
  2. 2.
    M. T. Martel-Chossat, I. A. U. Circ., No. 2027 (1967).Google Scholar
  3. 3.
    G. Wallerstein, Observatory,88, No. 964 (1968).Google Scholar
  4. 4.
    L. Luud, Ya. Vennik, and M. Pekhk, Pis'ma Astron. Zh.,4, 87 (1978).Google Scholar
  5. 5.
    B. Cester, Mem. Soc. Astr. Ital.,43, 83 (1972).Google Scholar
  6. 6.
    L. Luud, M. Ruuzalepp, and Ya. Vennik, Publ. Tartu. Astrofiz. Obs.,45, 113 (1977).Google Scholar
  7. 7.
    L. Luud, Ya. Vennik, and M. Pekhk, Publ. Tartu. Astrofiz. Obs.,47 (in press).Google Scholar
  8. 8.
    J. Smak, Astrophys. J. Suppl. Ser.,9, 141 (1964).Google Scholar
  9. 9.
    I. Kazis, Mass Loss from Stars, Reidel, Dordrecht (1969), p. 244.Google Scholar
  10. 10.
    S. Kwok, Private Communication (1978).Google Scholar
  11. 11.
    L. Luud, Izv. Akad. Nauk Est. SSR, Ser. Fiz.-Mat.,19, 177 (1970).Google Scholar
  12. 12.
    M. H. Slovak and J. Africano, M. N.,185, 591 (1978).Google Scholar
  13. 13.
    V. Piirola, Private Communication (1978).Google Scholar
  14. 14.
    Ya. Ya. Ikaunieks, in: Pulsating Stars [in Russian], Nauka, Moscow (1970), p. 350.Google Scholar
  15. 15.
    F. Schlesinger, General Catalog of Stellar Parallaxes, Yale Univ. Observatory (1935).Google Scholar
  16. 16.
    R. Faraggiana, Mem. Soc. Astr. Ital.,39, 291 (1968).Google Scholar
  17. 17.
    A. J. Deutsch, L. Lowen, S. G. Morris, and G. Wallerstein, P. A. S. P.,86, 233 (1974).Google Scholar
  18. 18.
    R. Faraggiana and M. Hack, Astron. Astrophys.,15, 55 (1971).Google Scholar
  19. 19.
    P. R. Wood, Astrophys. J.,190, 609 (1976).Google Scholar
  20. 20.
    A. V. Sweigart and P. G. Gross, Astrophys. J. Suppl. Ser.,36, 405 (1978).Google Scholar
  21. 21.
    A. A. Boyarchuk, in: Eruptive Stars [in Russian], Nauka, Moscow (1970), p. 113.Google Scholar
  22. 22.
    R. Viotti, Astrophys. J.,204, 293 (1976).Google Scholar
  23. 23.
    A. V. Tutukov and L. R. Yungel'son, Astrofizika,12, 521 (1976).Google Scholar
  24. 24.
    V. Straizhis and Z. Sviderskene, Byull. Vil'nyusskoi Astrofiz. Obs., No. 35 (1972).Google Scholar
  25. 25.
    L. Luud and M. Il'mas, Soobshch. Tartu. Astrofiz. Obs., No. 32 (1971).Google Scholar
  26. 26.
    L. Luud and M. Il'mas, Astrofizika,2, 205 (1966).Google Scholar
  27. 27.
    C. W. Allen, Astrophysical Quantities, Athlone Press, London (1972).Google Scholar
  28. 28.
    D. J. Mullan, Astrophys. J.,226, 151 (1978).Google Scholar
  29. 29.
    V. G. Gorbatskii, Novalike Stars and Novae [in Russian], Nauka, Moscow (1974).Google Scholar
  30. 30.
    R. A. Syunyaev and N. I. Shakura, in: Nonstationarity Phenomena and Stellar Evolution [in Russian], Nauka, Moscow (1974), p. 231.Google Scholar
  31. 31.
    E. B. Gusev, Astron. Tsirk., No. 944, 4 (1977).Google Scholar
  32. 32.
    Y. Yamashita, Publ. Dom. Astrophys. Obs., Victoria B. C.,18, 17 (1967).Google Scholar
  33. 33.
    T. Tsuji, Astron. Astrophys.,62, 29 (1978).Google Scholar
  34. 34.
    M. Plavec and P. Kratochvil, Bull. Astr. Inst. Czech.,15, 165 (1964).Google Scholar
  35. 35.
    J. S. Shlovskii, Astrophys. J.,148, L1 (1967).Google Scholar

Copyright information

© Plenum Publishing Corporation 1981

Authors and Affiliations

  • L. S. Luud

There are no affiliations available

Personalised recommendations