Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006chjas...6b.237j&link_type=abstract
Chinese Journal of Astronomy and Astrophysics, Supplement, Volume 6, Issue S2, Proceedings of the 2005 Lake Hanas International
Astronomy and Astrophysics
Astrophysics
Pulsars: General
Scientific paper
We review our case for strong observational evidence for a relationship between the direction of a pulsar's motion and its rotation axis. The information comes from calibrated polarization data for 20 pulsars which display linearly polarized emission from the pulse longitude at closest approach to the magnetic pole. Of these 20 pulsars, 10 show an offset in the angle between the velocity vector and the polarisation position angle which is either less than 10° or more than 80°, a fraction which is very unlikely by random chance. We believe that the bimodal nature of the distribution arises from the presence of orthogonal polarisation modes in the pulsar radio emission. In some cases this orthogonal ambiguity is resolved by observations at other wavelengths so that we conclude that the velocity vector and the rotation axis are aligned at birth. Strengthening the case is the fact that 4 of the 5 pulsars with ages less than 3 Myr show this relationship, including the Vela pulsar.
Hobbs George
Johnston Simon
Kramer Mallie Mae
Lyne Andrew G.
Vigeland Sarah
No associations
LandOfFree
Evidence for Alignment of the Rotation and Velocity Vectors in Pulsars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Evidence for Alignment of the Rotation and Velocity Vectors in Pulsars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for Alignment of the Rotation and Velocity Vectors in Pulsars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1244139