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Polarization studies of magnetic Cataclysmic Variables

Polarization studies of magnetic Cataclysmic Variables. Stephen Potter South African Astronomical Observatory. Outline. Photo-polarimetry Model to derive shock geometry Doppler tomography => overall accretion geometry. Spectropolarimetry Investigate the shock structure. Future with SALT

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Polarization studies of magnetic Cataclysmic Variables

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  1. Polarization studies of magnetic Cataclysmic Variables Stephen Potter South African Astronomical Observatory

  2. Outline Photo-polarimetry • Model to derive shock geometry • Doppler tomography => overall accretion geometry Spectropolarimetry • Investigate the shock structure Future with SALT • Spectropolarimetry with PFIS

  3. SAAO 1.9m

  4. Stokes imaging SAAO 1.9m Potter et al (2004) MNRAS 248, 316

  5. Doppler tomography Potter et al (2004) MNRAS 348, 316

  6. QS Tel trailed spectra ESO/MPI 2.2m Schwope et al. 1995 A&A 293, 764

  7. QS Tel trailed spectra ESO/MPI 2.2m Schwope et al. 1995 A&A 293, 764

  8. QS Tel average spectra ESO/MPI 2.2m Schwope et al. 1995 293, 764

  9. V834 Cen spectropolarimetry AAT 3.9m Wickramasinghe Tuohy & Visvanathan ApJ 318, 326

  10. V834 Cen spectropolarimetry AAT 3.9m Wickramasinghe Tuohy & Visvanathan ApJ 318, 326

  11. Spectropolarimetry of AM Her 2.2m German/Spanish Calar Alto Schaich et al. 1992 A&A 264, 529

  12. Spectropolarimetry with SALT

  13. Spectropolarimetry with SALT

  14. Spectropolarimetry with SALT

  15. Shock models Wickramasinghe & Meggitt 1982 MNRAS 198, 975

  16. Stratified accretion shock models Potter et al (2002) ASPC, 261, 165

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