Timing Noise

Shannon and Cordes examine timing noise for millisecond, canonical and magnetar pulsars. They find that the magnetars have an excess of timing noise relative to a model that accounts for the other pulsars. They argue that the timing noise does affect millisecond pulsars although not yet at a detectable level for most of these objects. However, it will affect the construction of PTAs by requiring a larger array of pulsars to reach a given level of sensitivity.

arXiv:1010.4794 [pdf, ps, other] Title: Assessing the Role of Spin Noise in the Precision Timing of Millisecond Pulsars