SIMBAD references

1999MNRAS.306..207B - Mon. Not. R. Astron. Soc., 306, 207-212 (1999/June-2)

The timing noise of PSR 0823+26, 1706-16, 1749-28, 2021+51 and the anomalous braking indices.


Abstract (from CDS):

We have investigated the stability of the pulse frequency second derivatives (ν{die}) of PSR 0823+26, 1706-16, 1749-28 and 2021+51 that show significant quadratic trends in their pulse-frequency histories in order to determine whether the observed second derivatives are secular or if they arise as part of noise processes. We have used time-of-arrival (TOA) data extending to more than three decades, which are the longest time-spans ever taken into account in pulse-timing analyses. We investigated the stability of the pulse-frequency second derivative in the framework of low-resolution noise power spectra estimated from the residuals of pulse frequency and TOA data. We have found that the ν{die} terms of these sources arise from the red torque noise in the fluctuations of pulse-frequency derivatives, which may originate from the external torques from the magnetosphere of the pulsar.

Abstract Copyright: 1999 RAS

Journal keyword(s): stars: neutron - pulsars: general - pulsars: individual: PSR 0823+26 - pulsars: individual: PSR 1706-16 - pulsars: individual: PSR 1749-28 - pulsars: individual: PSR 2021+51

Simbad objects: 4

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