Figure 1: Plots showing the relationship between the logarithm of the timing noise parameter ( ), obtained as described in text, and the logarithms of a) the absolute magnitude of the observed frequency second derivative ( ) and b) the model-predicted frequency second derivative ( ) for the current 27 HartRAO pulsars. | |
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Figure 2: VPlots showing the relationship between the activity parameter A and the logarithms a) the absolute magnitude of the observed frequency second derivative ( ) and b) the expected frequency second derivative ( ) for the current HartRAO pulsars. | |
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