- Multiband Polarimetric and Total Intensity Imaging of 3C 345,
E. Ros, J. A. Zensus, & A. P. Lobanov,
4th EVN/JIVE Symposium, eds. M.A. Garrett, R.M. Campbell, L.I. Gurvits,
New Astronomy Reviews, in press (1999)
[ PDF ]
[ PostScript ]
- Abstract
We monitored the superluminal QSO 3C 345 at three epochs during a one-year
period in 1995/1996,
observing with the VLBA at 22, 15, 8.4 and 5 GHz. We imaged the radio
source both in total and in polarized intensity.
In the images at 5 and 8.4\,GHz, the jet emission is traced up to 20
milliarcseconds (mas) distances from the jet core. In the 15 and 22 GHz
images, we identify several enhanced emission regions moving at apparent speeds
of 5c.
Images of the linear polarized emission
show predominantly an alignment of
the electric vector with the extremely curved jet along the inner
part of the high frequency
jet. At 5 GHz, the jet shows remarkably strong fractional polarization
(m~15%) with the electric vector perpendicular to the jet orientation.
Eduardo Ros
