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Stephen PotterSouth African Astronomical Observatory
Polarization studies of magnetic Cataclysmic Variables
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Outline
Photo-polarimetryModel to derive shock geometryDoppler tomography => overall accretion geometry
SpectropolarimetryInvestigate the shock structure
Future with SALTSpectropolarimetry with PFIS
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SAAO 1.9m
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SAAO 1.9m
Stokes imaging
Potter et al (2004) MNRAS 248, 316
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Doppler tomography
Potter et al (2004) MNRAS 348, 316
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QS Tel trailed spectra
Schwope et al. 1995 A&A 293, 764
ESO/MPI 2.2m
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QS Tel trailed spectra
Schwope et al. 1995 A&A 293, 764
ESO/MPI 2.2m
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QS Tel average spectra
Schwope et al. 1995 293, 764
ESO/MPI 2.2m
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V834 Cen spectropolarimetry
Wickramasinghe Tuohy & Visvanathan ApJ 318, 326
AAT 3.9m
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V834 Cen spectropolarimetry
Wickramasinghe Tuohy & Visvanathan ApJ 318, 326
AAT 3.9m
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Spectropolarimetry of AM Her
Schaich et al. 1992 A&A 264, 529
2.2m German/SpanishCalar Alto
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Spectropolarimetry with SALT
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Spectropolarimetry with SALT
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Spectropolarimetry with SALT
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Shock models
Wickramasinghe & Meggitt 1982 MNRAS 198, 975
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Stratified accretion shock models
Potter et al (2002) ASPC, 261, 165