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3C 153; z=0.277

3C 153 is a radio galaxy (angular size 6 arcsec=25 kpc) oriented at PA with an FRII radio morphology and a large arm-length ratio  [Laing1981]. It has been classified as a CSS source (e.g. [Akujor et al.1991]) but it would be at the upper end of the size distribution for such sources. The [OII] emission line nebula is slightly extended along the radio axis [McCarthy et al.1995].  [de Koff et al.1996] note that the galaxy has an elliptical nucleus and strong emission lines. The NICMOS image shows a fairly round host galaxy. There are a couple of unresolved sources nearby but they don't correlate with knots or hotspots in the radio source. Two other features are caused by the intersection of diffraction spikes.



David James Elford Floyd
2007-07-28