Pulsars with jets may harbor dynamically important disks

被引:29
作者
Blackman, EG [1 ]
Perna, R
机构
[1] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA
[2] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA
关键词
accretion; accretion disks; ISM : jets and outflows; plasmas; pulsars : general; pulsars : individual (Crab Pulsar; Vela Pulsar); X-rays : ISM;
D O I
10.1086/381802
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
For many astrophysical sources with jets, there is evidence of the contemporaneous presence of disks. In contrast, pulsars such as the Crab and Vela show jets but have not yet revealed direct evidence for accretion disks. Here we show that for such pulsars, an accretion disk radiating below detectable thresholds may simultaneously account for (1) observed deviations in the braking indices from that of the simple dipole, (2) observed pulsar timing ages, and (3) possibly even the jet morphology via a disk outflow that interacts with the pulsar wind within, collimating and/or redirecting it.
引用
收藏
页码:L71 / L74
页数:4
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