Improving the Light Curve Synthesis Program EBOP: Variable Position of the Periastron and Second Order Limb Darkening

  • A. Giménez
  • J. Díaz-Cordovés
Conference paper

Abstract

EBOP is one of the most commonly used codes for the light curve synthesis of detached eclipsing binaries. We have added to the original version the possibility to analyze binaries showing fast apsidal motion by introducing a variable position of the periastron. On the other hand, we have also introduced the possibility of using non-linear limb darkening laws to reproduce the surface flux distribution. A systematic difference was found in the orbital inclinations computed with our extended version of EBOP with respect to the standard one.

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References

  1. Binnendijk, L. 1960, “Properties of Double Stars”, University of Pennsylvania Press. Philadelphia.Google Scholar
  2. Binnendijk, L. 1974, Vistas in Astronomy, 16, 61ADSCrossRefGoogle Scholar
  3. Clausen, J.V. 1991, A&A, 246, 397ADSGoogle Scholar
  4. Binnendijk, L. 1974, Vistas in Astronomy, 16, 61ADSCrossRefGoogle Scholar
  5. Clausen, J.V. 1991, A&A, 246, 397ADSGoogle Scholar
  6. Etzel, P.B. 1980, “EBOP User’s Guide”, Department of Astronomy, University of California, Los Angeles.Google Scholar
  7. Giménez, A., Clausen, J.V. 1986, A&A, 161, 275ADSGoogle Scholar
  8. Giménez, A., Clausen, J.V. 1992, A&A, in, press.Google Scholar
  9. Nelson, B., Davis, W.D. 1972, ApJ, 174, 617ADSCrossRefGoogle Scholar
  10. O’Connell, D.J.K. 1970, Vistas in Astron., 12, 271ADSCrossRefGoogle Scholar
  11. Popper, D.M., Etzel, P.B. 1981, AJ, 86, 102ADSCrossRefGoogle Scholar
  12. Wood, D.B. 1972, “A Computer Program for Modeling Non–spherical Eclipsing Binary Systems”, Goddard Space Flight Center, Report X–110–72–473, Greenbelt, MarylandGoogle Scholar

Copyright information

© Springer-Verlag New York, Inc. 1993

Authors and Affiliations

  • A. Giménez
    • 1
  • J. Díaz-Cordovés
    • 2
  1. 1.Laboratorio de Astrofísica Espacial y Física FundamentalEstación de Villafranca del CastilloMadridSpain
  2. 2.Instituto “Alvaro de Mendaña”Ponferrada (León)Spain

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