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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 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 • Spectropolarimetry with PFIS
Stokes imaging SAAO 1.9m Potter et al (2004) MNRAS 248, 316
Doppler tomography Potter et al (2004) MNRAS 348, 316
QS Tel trailed spectra ESO/MPI 2.2m Schwope et al. 1995 A&A 293, 764
QS Tel trailed spectra ESO/MPI 2.2m Schwope et al. 1995 A&A 293, 764
QS Tel average spectra ESO/MPI 2.2m Schwope et al. 1995 293, 764
V834 Cen spectropolarimetry AAT 3.9m Wickramasinghe Tuohy & Visvanathan ApJ 318, 326
V834 Cen spectropolarimetry AAT 3.9m Wickramasinghe Tuohy & Visvanathan ApJ 318, 326
Spectropolarimetry of AM Her 2.2m German/Spanish Calar Alto Schaich et al. 1992 A&A 264, 529
Shock models Wickramasinghe & Meggitt 1982 MNRAS 198, 975
Stratified accretion shock models Potter et al (2002) ASPC, 261, 165