2009/05/31 by Margaret A. Livingstone, V. M. Kaspi, Victoria M. Kaspi +2 · 63 citations
Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Detector #Gamma-ray bursts and supernovae #Glitch #Magnetar #Neutron star #Noise (video) #Optics #Physics #Pulsar #Pulsars and Gravitational Waves Research #Rotation (mathematics) #Supernova #Supernova remnant #astro-ph.HE
paper · pdf · doi:10.1088/0004-637x/710/2/1710
published in The Astrophysical Journal 710(2), 1710-1717 (IOP Publishing) · 14 pages, 5 figures, Accepted for publication in the Astrophysical Journal. Incorporates changes from an anonymous referee; additional analysis and discussion included
arxiv created 2010/01/08 · openalex publication_date 2010/02/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.