TIMING BEHAVIOR OF THE MAGNETICALLY ACTIVE ROTATION-POWERED PULSAR IN THE SUPERNOVA REMNANT KESTEVEN 75

Journal Article · Sat Feb 20 04:00:00 EST 2010 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/710/2/1710· OSTI ID:21394414

Livingstone, Margaret A; Kaspi, Victoria M ^[1]

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1. Department of Physics, Rutherford Physics Building, McGill University, 3600 University Street, Montreal, Quebec, H3A 2T8 (Canada)

We report a large spin-up glitch in PSR J1846-0258 which coincided with the onset of magnetar-like behavior on 2006 May 31. We show that the pulsar experienced an unusually large glitch recovery, with a recovery fraction of Q = 8.7 +- 2.5, resulting in a net decrease of the pulse frequency. Such a glitch recovery has never before been observed in a rotation-powered pulsar (RPP); however, similar but smaller glitch over-recovery has been recently reported in the magnetar AXP 4U 0142+61 and may have occurred in SGR 1900+14. We also report a large increase in the timing noise of the source. We discuss the implications of the unusual timing behavior in PSR J1846-0258 on its status as the first identified magnetically active RPP.

• OSTI ID: 21394414
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 2 Vol. 710; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ANGULAR MOMENTUM
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
MOTION
PARTICLE PROPERTIES
PULSARS
PULSES
RADIATIONS
ROTATION
SPIN
STARS
SUPERNOVA REMNANTS
X RADIATION