Bibcode
Christensen, L.; Jahnke, K.; Wisotzki, L.; Sánchez, S. F.; Exter, K.; Roth, M. M.
Bibliographical reference
Astronomy and Astrophysics, Volume 452, Issue 3, June IV 2006, pp.869-874
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6
2006
Journal
Citations
7
Refereed citations
6
Description
Powerful radio galaxies and radio-loud quasars at high redshifts are
frequently associated with extended emission-line regions (EELRs). Here
we investigate the [O II] EELR around the quasar 3C 196 at z=0.871 using
integral field spectroscopy. We also detect extended [Ne II] emission at
a distance of about 30 kpc from the core. The emission is aligned with
the radio hot spots and shows a redshifted and a blueshifted component
with a velocity difference of ~800 km s-1. The alignment
effect and large velocities support the hypothesis that the EELR is
caused by a jet-cloud interaction, which is furthermore indicated by the
presence of a pronounced bend in the radio emission at the location of
the radio hot spots. We also report observations of two other systems
which do not show as clear indications of interactions. We find a weaker
alignment of an [O II] EELR from the z=0.927 quasar 3C 336, while no
EELR is found around the core-dominated quasar OI 363 at z=0.63.