Spectropolarimetry with the SALT RSS

Type Conference Paper
Names Janus D. Brink, David A. H. Buckley, Kenneth H. Nordsieck, Stephen B. Potter
Conference Name Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Volume 7735
Pages 41
Date July 1, 2010
URL http://adsabs.harvard.edu/abs/2010SPIE.7735E..41B
Library Catalog NASA ADS
Abstract 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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