Red Noise in Anomalous X-ray Pulsar Timing Residuals

Details Red Noise in Anomalous X-ray Pulsar Timing Residuals Red Noise in Anomalous X-ray Pulsar Timing Residuals

2007-12-20

arxiv.org/abs/0712.3322v1

AIP Conf.Proc.983:265-267,2008

Astronomy and Astrophysics

Astrophysics

submitted to the proceedings of the "40 Years of Pulsars" conference

Scientific paper

10.1063/1.2900158

Anomalous X-ray Pulsars (AXPs), thought to be magnetars, exhibit poorly understood deviations from a simple spin-down called "timing noise". AXP timing noise has strong low-frequency components which pose significant challenges for quantification. We describe a procedure for extracting two quantities of interest, the intensity and power spectral index of timing noise. We apply this procedure to timing data from three sources: a monitoring campaign of five AXPs, observations of five young pulsars, and the stable rotator PSR B1937+21.

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