Spectropolarimetry with the SALT RSS

Details Spectropolarimetry with the SALT RSS Spectropolarimetry with the SALT RSS

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7735e..41b&link_type=abstract

Ground-based and Airborne Instrumentation for Astronomy III. Edited by McLean, Ian S.; Ramsay, Suzanne K.; Takami, Hideki. Pro

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The large (~10 m) aperture of the Southern African Large Telescope (SALT) coupled with the unique capabilities of the Robert Stobie Spectrograph (RSS), promises unparalleled prospects for polarimetric observations on an 8 - 10 m class telescope. RSS is a highly versatile first-generation instrument of the SALT. Results from some of the first commissioning observations with the RSS are presented. A method for reducing SALT RSS spectropolarimetry data is proposed and verified on observations of unpolarised and polarised standard stars. The results provide estimates of telescope and instrumental polarisation as well as a calibration of the instrument's polarimetric position angle offset.

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