CTQ 414: A new gravitational lens

We report the discovery and ground-based observations of the new gravitatio nal lens CTQ 414. The source quasar lies at a redshift of z = 1.29 with a B magnitude of 17.6. Ground-based optical imaging reveals two point sources separated by 1." 2 with a magnitude difference of roughly 1 mag. Subtractio n of two stellar point-spread functions from images obtained in subarcsecon d seeing consistently leaves behind a faint, residual object. Fits for two point sources plus an extended object places the fainter object collinear w ith the two brighter components. Subsequent Hubble Space Telescope Near Inf rared Camera and Multi-Object Spectrometer (NICMOS) observations have confi rmed the identification of the fainter object as the lensing galaxy. Very L arge Array observations at 8.46 GHz reveal that all components of the lensi ng system are radio-quiet down to the 0.2 mJy flux level.