Two decades of pulsar timing of Vela

被引:60
作者
Dodson, Richard
Lewis, Dion
McCulloch, Peter
机构
[1] CSIRO, Sydney, NSW 2070, Australia
[2] Univ Tasmania, Hobart, Tas, Australia
关键词
stars : neutron; dense matter; pulsars : individual (PSR B0833-45);
D O I
10.1007/s10509-007-9372-4
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Pulsar timing at the Mt Pleasant observatory has focused on Vela, which can be tracked for 18 hours of the day. These nearly continuous timing records extend over 24 years allowing a greater insight into details of timing noise, micro glitches and other more exotic effects. In particular we report the glitch parameters of the 2004 event, along with the reconfirmation that the spin up for the Vela pulsar occurs instantaneously to the accuracy of the data. This places a lower limit of about 30 seconds for the acceleration of the pulsar to the new rotational frequency. We also confirm of the low braking index for Vela, and the continued fall in the DM for this pulsar.
引用
收藏
页码:585 / 589
页数:5
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