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Phase-referencing on BL Lac
A. Sokolov, T. Cawthorne
We report the results of a phase-referencing study aimed at uncovering precession of the VLBI jet of BL Lac. The observations were conducted at 8, 15, 22, and 43 GHz and consist of…
Multiwaveband Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Correlated Polarization Behavior
Svetlana G. Jorstad, Alan P. Marscher, Jason A. Stevens +9
We report on multi-frequency linear polarization monitoring of 15 active galactic nuclei containing highly relativistic jets with apparent speeds from 4 to . The me…
Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array
Svetlana G. Jorstad, Alan P. Marscher, Matthew L. Lister +8
We present total and polarized intensity images of 15 active galactic nuclei obtained with the Very Long Baseline Array at 7 mm at 17 epochs from 1998 March to 2001 April. At some…
Intermediate Scale Structures in BL Lac objects
C. Reynolds, T. V. Cawthorne, D. C. Gabuzda
The parsec-scale total intensity structures of BL Lac objects share many characteristics with quasars: e.g. well-collimated jets and superluminal motion. However, the jets of BL La…
Analysis of 6cm VLBI polarization observations of a complete sample of northern BL Lacertae Objects
D. C. Gabuzda, A. B. Pushkarev, T. V. Cawthorne
The results of VLBI total intensity (I) and linear polarization (P) observations at 6cm are presented for ten radio bright BL Lacertae objects. These images complete first-epoch po…