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| Paper: |
Circular Polarimetry of Extragalactic Radio Sources |
| Volume: |
449, Astronomical Polarimetry 2008: Science from Small to Large Telescopes |
| Page: |
426 |
| Authors: |
Cenacchi, E.; Kraus, A.; Beckert, T.; Mack, K. |
| Abstract: |
We report multi-frequency circular polarization measurements for the
four extragalactic radio sources 0056-00, 0716+71, 3C 138 and 3C 161 taken
at the Effelsberg 100-m radio telescope. The data reduction is based on a
new calibration procedure that allows the contemporary measurement of
the four Stokes parameters at different frequencies with single-dish
radio telescopes. We are in the process of framing the observed full
Stokes spectra within a theoretical model that explains that the level
of measured circular polarization as Faraday conversion. |
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