The Hard X-Ray Spectra of EF ERI and Other CVS

  • C. Done
  • J. P. Osborne
  • A. P. Beardmore
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 208)


Reflection of the X-ray emission from the surface of the white dwarf should be present in all hard X-ray emitting CV systems. It is clearly identified in the Ginga 2… 20 keV spectra of the polars AM Her and EF Eri, and also in the quiescent spectra of the dwarf novae SS Cyg. The inclusion of the hard reflection spectrum lowers the derived continuum temperature, so resolving a long standing problem of the mismatch of the iron line and continuum properties, and, with more realistic multi-temperature continuua, the derived shock temperatures are close to those expected from theoretical models of a strong shock.


White Dwarf Iron Line Photoelectric Absorption Thermal Bremsstrahlung Photoelectric Cross Section 
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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • C. Done
    • 1
  • J. P. Osborne
    • 2
  • A. P. Beardmore
    • 3
  1. 1.Department of PhysicsUniversity of DurhamDurhamUK
  2. 2.Department of Physics and AstronomyUniversity of LeicesterLeicesterUK
  3. 3.Department of PhysicsThe Open UniversityMilton KeynesUK

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