Post-outburst timing of the magnetically active pulsar J1846-0258

被引：0
|
作者：
Livingstone, Margaret A. [1 ]
Ng, C. -Y. [1 ]
Kaspi, Victoria M. [1 ]
Gavrii, Fotis P. [2 ]
Gotthelf, E. V. [3 ]
机构：
[1] McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada
[2] NASA GFSC, Astrophys Sci Div, Nishinomiya, Hyogo 662, Japan
[3] Univ Maryland, CRESST, Baltimore, MD 21250 USA
来源：
RADIO PULSARS: AN ASTROPHYSICAL KEY TO UNLOCK THE SECRETS OF THE UNIVERSE | 2011年 / 1357卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
pulsars; ROTATION-POWERED PULSAR; REMNANT KESTEVEN 75; PSR J1846-0258; BRAKING INDEX; SPIN-DOWN; MAGNETAR; EMISSION; BEHAVIOR; KES-75; YOUNG;
D O I：
10.1063/1.3615113
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The similar to 800 yr-old pulsar PSR J1846-0258 in the supernova remnant Kes 75 is a unique transition object between rotation-powered pulsars and magnetars. While it typically behaves as a rotation-powered pulsar, in 2006 it exhibited a distinctly magnetar-like outburst accompanied by a large glitch with an unusual over-recovery. We present X-ray timing observations taken with the Rossi X-ray Timing Explorer after the X-ray outburst and accompanying glitch had recovered. We observe that the braking index of the pulsar, previously measured to be n = 2.65 +/- 0.01 has decreased by 18 +/- 5%. We also note a persistent increase in the timing noise relative to the pre-outburst level, reminiscent of behavior previously observed from some magnetars.
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页码：189 / +
页数：2
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