Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..343..415b&link_type=abstract
Astronomical Polarimetry: Current Status and Future Directions ASP Conference Series, Vol. 343, Proceedings of the Conference he
Astronomy and Astrophysics
Astronomy
Scientific paper
Polarimetry will be a niche capability provided by the Prime Focus Imaging Spectrograph (PFIS) on SALT (the Southern African Large Telescope). A number of polarimetric observing modes will be possible, including time-resolved all-Stokes spectropolarimetry. Such observations are key to our understanding of the accretion mechanisms operating in magnetic cataclysmic variable stars (mCVs). Indeed, for the first time, PFIS will allow us to undertake simultaneous all-Stokes observations, with unprecedented time resolution, through synchronization of the waveplate rotation with on-chip charge shuffling. This paper will present some of the details of the PFIS spectropolarimetry modes and will discuss its application to time series observations of mCVs. Such observations will allow for far more quantitative modelling of the accretion process through the utilization of so-called ``Stokes imaging'' in combination with traditional Doppler tomography.
Buckley David A. H.
Nordsieck Kenneth H.
O'Donoghue Darragh
Potter Stephen B.
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