Published March 26, 2012
| public
Journal Article
Faraday rotation in the MOJAVE blazars: 3C 273 a case study
Abstract
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.
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.Additional details
- Eprint ID
- 32287
- Resolver ID
- CaltechAUTHORS:20120706-141710502
- AST-0807860
- NSF
- NNX08AV67G
- NASA Fermi
- University of Michigan
- NSF
- NASA
- Created
-
2012-07-06Created from EPrint's datestamp field
- Updated
-
2022-11-01Created from EPrint's last_modified field