Orbital Radial Velocity Curves of Symbiotic Stars

  • Michael R. Garcia
  • Scott J. Kenyon
Part of the Astrophysics and Space Science Library book series (ASSL, volume 145)


For the past 6 years we have been measuring the radial velocity of the M-giant component of Symbiotics Stars with high dispersion echelle spectrographs. Because these velocities are based on the absorption line spectrum of the M-star, very reliable orbital radial velocity curves can be constructed. The orbital solutions derived from these velocity curves allow the approximate size of the binary to be determined, and also provide insight into the origin of the photometric variations seen in these stars. For most of the stars, the photometric variations are due to eclipse or reflection effects (two notable exceptions are Z And and RW Hya). Stars which may be near to filling their Roche lobes are TX CVn, Z And, EG And, UV Aur, and CI Cyg. Stars which do not appear to fill their Roche lobes are AG Dra, RW Hya, and AG Peg.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Aller, L.H., Publ. DAO Victoria, B.C., 9, 321.Google Scholar
  2. Garcia, M.R., 1986, Astr. Ap. 91, 1400.ADSGoogle Scholar
  3. Huang, C.C., 1983, in IAU Colloquium No. 70, The Nature of Symbiotic Stars ,ed. M. Fried jung and R. Viotti, (Dordrecht:Reidel), p. 151.Google Scholar
  4. Hutchings, J.B., Cowley, A.P., and Redman, R.O., 1975 Ap.J. 201, 404.ADSCrossRefGoogle Scholar
  5. Iijima, T., 1982 Astr. Ap. 116, 210.ADSGoogle Scholar
  6. Kenyon, S.J., and Fernandez-Castro, T., 1987 Ap.J. 316, 427.ADSCrossRefGoogle Scholar
  7. Kenyon, S.J., 1986, The Symbiotic Stars ,(Cambridge: Cambridge University Press).CrossRefGoogle Scholar
  8. Kenyon, S.J., and Webbink, R.F., 1984, Ap.J. 279, 252.ADSCrossRefGoogle Scholar
  9. Kenyon, S.J., and Gallagher, J.S., 1983 A.J. ,88, 666.ADSCrossRefGoogle Scholar
  10. Kenyon, S.J., 1982 P.A.S.P. 94, 165.ADSCrossRefGoogle Scholar
  11. Mirzoyan, L.V., and Bartaya, R.A., 1960, Izv. Abastumani Astrofiz. Obs. ,No. 25, 121.Google Scholar
  12. Meinunger, L., 1981, Inf. Bull. Var. Stars ,No. 2016.Google Scholar
  13. Meinunger, L., 1979 Inf. Bull. Var. Stars ,No. 1611.Google Scholar
  14. Monet, D.G., 1979 Ap.J. 234, 275.ADSCrossRefGoogle Scholar
  15. Oliversen, N.A., Anderson, C.M., Stencel, R.E., and Slovak, M.H., 1985 Ap.J. 295, 620.ADSCrossRefGoogle Scholar
  16. Patterson, J., 1984 Ap.J. Suppl. 54, 443.ADSCrossRefGoogle Scholar
  17. Payne-Gaposchkin, C., 1957, The Galactic Novae (Amsterdam: North Holland).Google Scholar

Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • Michael R. Garcia
    • 1
  • Scott J. Kenyon
    • 1
  1. 1.Harvard/Smithsonian Center for AstrophysicsCambridgeUSA

Personalised recommendations