A RESOLVED IMAGE OF THE SUNYAEV-ZELDOVICH EFFECT IN ABELL-1413

Following observations of the cluster Abell 1413 with the Ryle Telesco pe (RT)at 15 GHz, we report the detection of a resolved decrement in t he cosmic microwave background arising from the Sunyaev-Zel'dovich (S- Z) effect with a significance of 8 sigma. The position and shape of th e S-Z decrement are in good agreement with the X-ray image from the RO SAT satellite. Because of the cluster ellipticity and the presence of a strong cooling flow, we defer H-0, estimation from A1413 until suita bly sophisticated analysis methods are developed. We detail the tailor ing of the east-west RT array carried out to optimize the observations of this low-declination cluster. We also describe our strategy for re moving the contaminant sources in the field that are variable.