Presentation is loading. Please wait.

Presentation is loading. Please wait.

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

Similar presentations


Presentation on theme: "Stephen Potter South African Astronomical Observatory Polarization studies of magnetic Cataclysmic Variables."— Presentation transcript:

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

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

4

5 SAAO 1.9m

6 Stokes imaging Potter et al (2004) MNRAS 248, 316

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

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

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

10 QS Tel average spectra Schwope et al , 764 ESO/MPI 2.2m

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

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

13 Spectropolarimetry of AM Her Schaich et al A&A 264, m German/Spanish Calar Alto

14 Spectropolarimetry with SALT

15

16

17 Shock models Wickramasinghe & Meggitt 1982 MNRAS 198, 975

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


Download ppt "Stephen Potter South African Astronomical Observatory Polarization studies of magnetic Cataclysmic Variables."

Similar presentations


Ads by Google