目录
图像
上传图像
DSS Images Other Images
相关文章
The Origin and Motion of PSR J0538+2817 in S147
We report on Very Long Baseline Array (VLBA) astrometry and Chandraimaging of PSR J0538+2817 in the supernova remnant S147. We measure aparallax distance of 1.47+0.42-0.27 kpc along witha high-precision proper motion, giving a transverse velocityV⊥=400+114-73 km s-1. Asmall extended wind nebula is detected around the pulsar; the symmetryaxis of this structure suggests that the spin axis lies12deg+/-4deg from the velocity vector(two-dimensional), but the emission is too faint for robustmodel-independent statements. The neutron star is hot, consistent withthe young ~40 kyr kinematic age. The pulsar progenitor is likely arunaway from a nearby cluster, with NGC 1960 (M36) a leading candidate.
|
提交文章
相关链接
提交链接
下列团体成员
|
观测天体数据
目录:
|
INHABITED SKY
