Resolution of az= 1 QSO with Adaptive Optics

The Adaptive Optics Bonnette (AOB) of the Canada‐France‐Hawaii Telescope (CFHT) was used to obtain H ‐band and I ‐band images of the low‐luminosity, optically selected quasar 1055.3+019 at z = 1.06. The FWHMs of stars were 0 11 in H and 0 3 in I during these observations, and the detectors used had 0 034 pixels in H and 0 12 pixels in I . Procedures for determining the point‐spread function are described. The QSO is clearly resolved in both wave bands, with significant extended flux within 0 1 of the nucleus. Overall, it appears to be elongated in the direction of a knot and connecting feature extending about 1 '' northeast of the nucleus visible in the H ‐band image. There are no other evident close companions, but the host galaxy's hybrid luminosity profile and off‐centered nucleus indicate recent tidal disturbance. The I - H colors of the host galaxy correspond to an unreddened stellar population that is currently star forming or is within a very short time of ending an initial starburst. The reddening must be small to match any models.