Unusual glitch behaviours of two young pulsars

Details Unusual glitch behaviours of two young pulsars Unusual glitch behaviours of two young pulsars

2004-07-22

arxiv.org/abs/astro-ph/0407483v1

Astronomy and Astrophysics

Astrophysics

Latex format, six files, 5 pages with 4 figues. accepted for MNRAS

Scientific paper

10.1111/j.1365-2966.2004.08241.x

In this paper we report unusual glitches in two young pulsars, PSR J1825-0935 (B1822-09) and PSR J1835-1106. For PSR J1825-0935, a slow glitch characterised by a temporary decrease in the slowdown rate occurred between 2000 December 31 to 2001 December 6. This event resulted in a permanent increase in frequency with fractional size $\Delta\nu/\nu\sim31.2(2)\times10^{-9}$, however little effect remained in slowdown rate. The glitch in PSR J1835-1106 occurred abruptly in November 2001 (MJD 52220\pm3) with $\Delta\nu/\nu\sim14.6(4)\times10^{-9}$ and little or no change in the slow-down rate. A significant change in $\ddot\nu$ apparently occurred at the glitch with $\ddot\nu$ having opposite sign for the pre- and post-glitch data.

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