MILLISECOND PULSAR RADIATION PROPERTIES

Two investigations of millisecond pulsar radiation are discussed: aver age total intensity pulse morphology and individual pulse to pulse flu ctuations. The average emission profiles of millisecond pulsars are co mpared with those of slower pulsars in the context of polar cap models . In general the full widths of pulsar emission regions continue to wi den inversely with period P as P-((0.3-0.5)) as expected for dipole po lar cap models. Many pulse components are very narrow. The period scal ing of pulsar profiles - separations and widths - can tell us about th e angular distribution of radiating currents. An investigation of indi vidual pulses from two millisecond pulsars at 430 MHz shows erratic pu lse to pulse variations similar to that seen in slow pulsars. PSR B193 7+21 displays occasional strong pulses that are located in the trailin g edge of the average profile with relative flux densities in the rang e of 100 to 400. These are similar to the giant pulses seen in the Cra b pulsar.