Proc. IAU volume 13, issue S337, P317-318 2017 DOI: 10.1017/s1743921317008766 View full text
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Paul Brook, Aris Karastergiou

Abstract: AbstractFifty years of pulsar data has led to the discovery of emission and rotation variability on timescales of months and years; we have developed techniques to identify this long timescale variability. Individual observations may be too noisy to identify subtle changes in a pulse profile; we use Gaussian process regression to model noisy observations and produce a continuous map of pulse profile variability. Generally, multiple observing epochs are required to obtain the pulsar spin frequency derivative. G…

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