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

T. Hovatta, M. L. Lister, M. F. Aller, H. D. Aller, D. C. Homan, Y. Y. Kovalev, A. B. Pushkarev, T. Savolainen

Research output: Contribution to journalArticleScientificpeer-review


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.
Original languageEnglish
Article number012008
Number of pages6
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed
EventInternational Workshop on Beamed and Unbeamed Gamma-Rays from Galaxies - Muonio, Finland
Duration: 11 Apr 201115 Apr 2011


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