OBSERVATIONS OF 2 MILLISECOND PULSARS IN THE GLOBULAR-CLUSTER NGC-5904

We report on 5 yr of pulsar observations of the globular cluster NGC 5 904 (M5). A timing model has been obtained for the two known pulsars, and a deep search for additional faint isolated pulsars has lowered th e detection flux limit to 40 mu Jy without further detection. We discu ss the details and implications of the phase coherent timing models fo r PSR B1516+02A and PSR B1516+02B. Of particular interest for the bina ry PSR B1516+02B are the observed negative period derivative due to ac celeration in the gravitational field of M5 and a detection of orbital precession.