ULTRA-STEEP-SPECTRUM RADIO-SOURCES .2. RADIO, INFRARED, OPTICAL, AND HST IMAGING OF HIGH-REDSHIFT 4C OBJECTS

We present radio, infrared, optical, and HST imaging data on eight hig h-redshift (z > 2) ultra-steep-spectrum 4C radio sources. The radio po larization morphologies are highly asymmetric, indicating large rotati on measures across the objects. The optical morphologies are all align ed with the radio axis. The multicolor images show strong asymmetric g radients in the color of the continuum along the radio axes. No optica l emission is detected from the radio lobes. Narrowband images of the redshifted Ly alpha emission show that the emission-line morphology is generally aligned with the radio source but does not necessarily corr espond to the apparent morphology of the rest-frame ultraviolet contin uum.