| Issue |
A&A
Volume 415, Number 2, February IV 2004
|
|
|---|---|---|
| Page(s) | 477 - 481 | |
| Section | Extragalactic astronomy | |
| DOI | https://doi.org/10.1051/0004-6361:20034313 | |
| Published online | 11 February 2004 | |
Parsec-scale rotation-measure distribution in the quasar 3C 147 at 8 GHz
1
National Astronomical Observatories, Chinese Academy of Science, A20 Datun Road, Chaoyang District, Beijing 100012, PR China
2
Department of Physics, University College Cork, Cork, Ireland
Corresponding author: H. Y. Zhang, hyzhang@bao.ac.cn
Received:
12
September
2003
Accepted:
28
October
2003
VLBA polarization observations of the high-rotation-measure source
3C 147 were made at four frequencies in the available 8 GHz band.
The distribution of total flux and rotation measure across the
source has been imaged. The rotation measure
of the inner jet of the source (
rad m-2)
is consistent with previous results.
After removing the rotation of the plane of polarization due to a
foreground screen,
the derived intrinsic magnetic field structure
of the source on parsec scales is roughly transverse to
the predominant jet
direction, indicating the presence of relativistic shocks
or a dominant toroidal jet B-field component.
Key words: polarization / galaxies: jets / galaxies: magnetic fields / galaxies: quasars: individual: 3C 147
© ESO, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.