CCD field polarimetry with EFOSC.

Details CCD field polarimetry with EFOSC. CCD field polarimetry with EFOSC.

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986msngr..46...21d&link_type=abstract

The Messenger, vol. 46, p. 21-22

Physics

6

Ccd Observations:Polarimetry, Polarimetry:Ccd Observations, Polarimetry:Radio Galaxies, Radio Galaxies:Polarimetry

Scientific paper

This is areport on the installation of a Wollaston prism in EFOSC, the ESO Faint Object Spectrograph and Camera (1,2). By inserting the prism in the parallel beam space of the instrument it is now possible to obtain for each object in the CCO field of view (3.'5 x 5.'6) two images characterized by perpendicular linear polarizations. The amount p and the position angle phi; of the polarization can be derived fram a cosine fitting to the relative intensity differences of the two images as measured at different orientations of the Wollaston. The change in the position angle of the polarization vector is achieved by the rotation of the adaptor flange on which EFOSC is mounted.

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