Pulsar Timing Noise

Abstract

Pulsar timing techniques allow a pulsar's rotational,astrometric and binary parameters to be measured to highprecision. Any features that remain in the timing residualsafter fitting for the expected pulsar parameters aresuggestive of unmodelled physics such as binary companions,free precession or glitch events. In this paper we providean overview of the features observed in the timingresiduals that collectively are referred to as ``pulsartiming noise''. We use results obtained from the literatureand from the Jodrell Bank observatory archive of timingresiduals.