Other
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.0512m&link_type=abstract
American Astronomical Society, 193rd AAS Meeting, #05.12; Bulletin of the American Astronomical Society, Vol. 30, p.1251
Other
Scientific paper
We present narrow-band images of ~ 64 3CR radio galaxies obtained with HST's WFPC2 camera in the [O II]lambda3727 ,[O III]lambda5007 , and Hα +[N II] bands as part of the 3CR Snapshot Survey. A preliminary analysis of the images reveals a wide variety of emission-line morphologies, from compact nuclear regions to large-scale emission knots and filaments. We find a close correspondence between the emission-line and radio axes (offset < 40(deg) ) and a positive correlation between the radio luminosity and spatial extent of the emission-line regions. We detect resolved line emission in the centres of the giant nuclear dust disks of 3C 264 and 3C 449, and possibly in two others, 3C 31 and 3C 465. We do not detect line emission along the optical synchrotron jets of 3C 78 and 3C 264 although there is a hint of disk-like emission orthogonal to the jet of 3C 78. Among the QSO subsample, we positively identify resolved emission-line regions in the two QSOs 3C 249.1 and 3C 277.1, tentatively in 3C 263, 3C 454.3, and 3C 380, and none in 3C 93, 3C 175, and 3C 207.
Baum Stefi A.
Biretta John A.
Martel Andre R.
McCarthy Patrick. J.
McMaster Matt
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