Observations of two Millisecond Pulsars in the Globular Cluster NGC5904

We report on 5 years of pulsar observations of the globular cluster NGC5904 (M5). A timing model has been obtained for the two known pulsars, and a deep search for additional faint isolated pulsars has lowered the detection ux limit vefold without further detection. We discuss the details and implications of the phase coherent timing models for PSR B1516+02A and PSR B1516+02B. Of particular interest for the binary PSR B1516+02B are the observed negative period derivative due to acceleration in the gravitational eld of M5 and a detection of orbital precession. Subject headings: binaries:close, globular clusters:individual (M 5, NGC 5904), pulsars:individual (PSR B1516+02A, PSR B1516+02B)