Proper Motion of the Crab Pulsar Revisited
Astrophysics
2009-11-11 v1
Abstract
It has been suggested that the Crab pulsar's proper motion is well aligned with the symmetry axis of the pulsar wind nebula. We have re-visited this question, examining over 6 years of F547M WFPC2 chip 3 images to obtain a best-fit value of mas/yr at PA . At to the nebula axis, this substantially relaxes constraints on the birth kick of this pulsar. Such misalignment allows the momentum to be imparted over 1s timescales.
Cite
@article{arxiv.astro-ph/0602255,
title = {Proper Motion of the Crab Pulsar Revisited},
author = {C. -Y. Ng and Roger W. Romani},
journal= {arXiv preprint arXiv:astro-ph/0602255},
year = {2009}
}
Comments
10 pages, 3 figures, accepted for publication in ApJ