A Puzzling Paucity of Double Peaked X-ray Pulsars

Details A Puzzling Paucity of Double Peaked X-ray Pulsars A Puzzling Paucity of Double Peaked X-ray Pulsars

2002-11-19

arxiv.org/abs/astro-ph/0211425v1

Astron.Astrophys. 404 (2003) 1023-1032

Astronomy and Astrophysics

Astrophysics

submitted to A&A

Scientific paper

10.1051/0004-6361:20030555

Accretion powered pulsars exhibit a variety of lightcurves. In this paper we propose to classify the observed lightcurves as single or double pulsed.We analyze the lightcurves of 86 accretion powered pulsars and assign them to these classes. We present three datasets: first in which the classification can be easily done, second for which the classification is more difficult and not certain, and third for which we were unable to classify the pulsar because of lack of published data. We analyze a simple model in which the angles between the magnetic and rotation axis $\beta$, and between the rotation axis and the line of sight $\theta$ are random, and show that it is inconsistent with the data. We also present a model in whichthe angle between the magnetic axis and rotation axis is restricted and compare it with the data. This leads to an upper limit on the angle $\beta < 40^\circ$. We conclude that there must be a mechanism that leads to alignment of the magnetic and spin axis in X-ray pulsars.

Affiliated with

Also associated with

No associations

Rating

A Puzzling Paucity of Double Peaked X-ray 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 A Puzzling Paucity of Double Peaked X-ray Pulsars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Puzzling Paucity of Double Peaked X-ray Pulsars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-240972