86 GHz Very Long Baseline Polarimetry of 3C273 and 3C279 with the Coordinated Millimeter VLBI Array

Abstract

86 GHz Very Long Baseline Polarimetry probes magnetic field structures within the cores of Active Galactic Nuclei at higher angular resolutions and a spectral octave higher than previously achievable. Observations of 3C273 and 3C279 taken in April 2000 with the Coordinated Millimeter VLBI Array have resulted in the first total intensity (Stokes I) and linear polarization VLBI images reported of any source at 86 GHz. These results reveal the 86 GHz electric vector position angles within the jets of 3C273 and 3C279 to be orthogonal to each other, and the core of 3C273 to be unpolarized. If this lack of polarization is due to Faraday depolarization alone, the dispersion in rotation measure is >=90000 rad/m^2 for the core of 3C273.

AASTeX v5.02; 10 pages; 4 figures; accepted for publication in the Astrophysical Journal Letters

Cited by in corpus (13)

• High Resolution Linear Polarimetric Imaging for the Event Horizon Telescope
• A Global 86GHz VLBI Survey of Compact Radio Sources
• Radio observations of active galactic nuclei with mm-VLBI
• On the Calibration of Full-polarization 86GHz Global VLBI Observations
• Concurrent 43 and 86 GHz Very Long Baseline Polarimetry of 3C273
• Detecting Changing Polarization Structures in Sagittarius A* with High Frequency VLBI
• Acceleration of Compact Radio Jets on Sub-parsec Scales
• Fine-scale structure of the quasar 3C 279 Measured with 1.3 mm very long baseline interferometry
• The Speed and Orientation of the Parsec-Scale Jet in 3C 279
• Untangling Optical Emissions of the Jet and Accretion Disk in the Flat-Spectrum Radio Quasar 3C 273 with Reverberation Mapping Data
• The First IRAM/PdBI Polarimetric Millimeter Survey of Active Galactic Nuclei. I. Global Properties of the Sample
• Detection of Optical Synchrotron Emission from the Radio Jet of 3C279
• Circular polarization measurement in millimeter-wavelength spectral-line VLBI observations