Polarimetric Observations of 15 AGNs at High Frequencies

Jorstad, S.G., Marscher, A.P., Stevens, J. A., Robson, I., Lister, M., Stirling, A.M., Cawthorne, T.V., Smith, P.S., Gomez, J-L., Gabuzda, D. and Gear, W.K. (2005) Polarimetric Observations of 15 AGNs at High Frequencies. In: In: Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA - ASP Conf Series, 340 :. Astronomical Society of the Pacific, pp. 183-5. ISBN 1-58381-207-5
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We have obtained total and polarized intensity images of 15 AGNs with the VLBA at 7 mm at 17 epochs from 25/26 March 1998 to 14 April 2001. The VLBA observations are accompanied at many epochs by simultaneous mea- surements of polarization at 1.35/0.85 mm as well as less frequent simultaneous optical polarization measurements. We discuss the similarities and complexities of polarization behavior at different frequencies along with the VLBI properties.


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