3 mm GMVA observations of total and polarized emission from blazar and radio galaxy core regions
Krichbaum, Thomas P.
Marscher, Alan P.
Jorstad, Svetlana G.
Gomez, Jose L.
Hodgson, Jeffrey A.
Zensus, Anton J.
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Citation (published version)Carolina Casadio, Thomas P Krichbaum, Alan P Marscher, Svetlana G Jorstad, Jose L Gomez, Ivan Agudo, Uwe Bach, Jae-Young Kim, Jeffrey A Hodgson, Anton J Zensus. 2017. "3 mm GMVA Observations of Total and Polarized Emission from Blazar and Radio Galaxy Core Regions." Galaxies. Polarised Emission from Astrophysical Jets. Ierapetra, Greece, 2017-06-12 - 2017-06-16. https://doi.org/10.3390/galaxies5040067
We present total and linearly polarized 3 mm Global mm-VLBI Array images of a sample of blazars and radio galaxies from the VLBA-BU-BLAZAR 7 mm monitoring program designed to probe the innermost regions of active galactic nuclei (AGN) jets and locate the sites of gamma-ray emission observed by the Fermi-LAT. The lower opacity at 3 mm and improved angular resolution, on the order of 50 microarcseconds, allow us to distinguish features in the jet not visible in the 7 mm VLBA data. We also compare two different methods used for the calibration of instrumental polarisation and we analyze the resulting images for some of the sources in the sample.
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