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Faraday rotation in the MOJAVE blazars: 3C 273 a case study

Hovatta, T. and Lister, M. L. and Aller, M. F. and Aller, H. D. and Homan, D. C. and Kovalev, Y. Y. and Pushkarev, A. B. and Savolainen, T. (2012) Faraday rotation in the MOJAVE blazars: 3C 273 a case study. In: International workshop on beamed and unbeamed gamma-rays from galaxies. Journal of Physics Conference Series . No.355. Institute of Physics , Art. No. 012008. ISBN 1742-6588.

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Radio polarimetric observations of Active Galactic Nuclei can reveal the magnetic field structure in the parsec-scale jets of these sources. We have observed the γ-ray blazar 3C 273 as part of our multi-frequency survey with the Very Long Baseline Array to study Faraday rotation in a large sample of jets. Our observations re-confirm the transverse rotation measure gradient in 3C 273. For the first time the gradient is seen to cross zero which is further indication for a helical magnetic field and spine-sheath structure in the jet. We believe the difference to previous epochs is due to a different part of the jet being illuminated in our observations.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Hovatta, T.0000-0002-2024-8199
Lister, M. L.0000-0003-1315-3412
Aller, M. F.0000-0003-2483-2103
Homan, D. C.0000-0002-4431-0890
Kovalev, Y. Y.0000-0001-9303-3263
Pushkarev, A. B.0000-0002-9702-2307
Savolainen, T.0000-0001-6214-1085
Additional Information:© 2012 IOP Publishing Ltd. The MOJAVE project is supported under National Science Foundation grant AST-0807860 and NASA Fermi grant NNX08AV67G. Work at UMRAO has been supported by a series of grants from the NSF and NASA and by funds for operation from the University of Michigan.The VLBA is a facility of the National Science Foundation operated by the National Radio Astronomy Observatory under cooperative agreement with Associated Universities, Inc.
Funding AgencyGrant Number
University of MichiganUNSPECIFIED
Subject Keywords:Atomic and molecular physics; Astrophysics and astroparticle
Series Name:Journal of Physics Conference Series
Issue or Number:355
Classification Code:PACS: 98.54.Cm; 32.60.+i; 98.54.Aj; 98.62.Js
Record Number:CaltechAUTHORS:20120706-141710502
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Official Citation:Faraday rotation in the MOJAVE blazars: 3C 273 a case study T Hovatta et al 2012 J. Phys.: Conf. Ser. 355 012008
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32287
Deposited By: Jason Perez
Deposited On:06 Jul 2012 23:21
Last Modified:09 Nov 2021 21:26

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