The 71-Second Oscillation of DQ Her at 2180 Å

  • E. L. Robinson
  • E. Zhang
  • R. C. Bless
  • J. F. Dolan
  • J. L. Elliot
  • G. W. van Citters
Part of the Astrophysics and Space Science Library book series (ASSL, volume 208)

Abstract

The 71-s modulation in the light curve of the old nova DQ Her has a mean semi-amplitude of 1.8% at 2180Å, although the amplitude varies by at least a factor of two from orbit to orbit. The disturbance in the amplitude and phase of the modulation during eclipses is similar to that observed at visual wavelengths. We conclude that at 2180Å, as at visual wavelengths, the modulated flux is reprocessed and comes from the accretion disk.

Keywords

Light Curve Accretion Disk White Dwarf Visual Wavelength Orbital Phase 
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.

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References

  1. Patterson, J., Robinson, E. L., Nather, R. E., 1978, Ap. J., 224, 570ADSCrossRefGoogle Scholar
  2. Petterson, J., 1980, Ap. J., 241, 247ADSCrossRefGoogle Scholar
  3. Zhang, E., Robinson, E.L., Stiening, R. F., Horne, K., 1996, Ap. J., in pressGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • E. L. Robinson
    • 1
  • E. Zhang
    • 1
  • R. C. Bless
    • 2
  • J. F. Dolan
    • 3
  • J. L. Elliot
    • 4
  • G. W. van Citters
    • 5
  1. 1.Department of AstronomyUniversity of TexasAustinUSA
  2. 2.Department of Astronomy and Space Astronomy LaboratoryUniversity of WisconsinMadisonUSA
  3. 3.Laboratory for Astronomy and Solar PhysicsNASA Goddard Space Flight CenterGreenbeltUSA
  4. 4.Department of Earth, Atmospheric, and Planetary Sciences and Department of PhysicsMassachusetts Institute of TechnologyCambridgeUSA
  5. 5.Division of Astronomical SciencesNational Science FoundationArlingtonUSA

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