The Evolution of PSR J0737-3039B and a Model for Relativistic Spin Precession
Abstract
We present the evolution of the radio emission from the 2.8-s pulsar of the double pulsar system PSR J0737-3039A/B. We provide an update on the Burgay et al. (2005) analysis by describing the changes in the pulse profile and flux density over five years of observations, culminating in the B pulsar's radio disappearance in 2008 March. Over this time, the flux density decreases by 0.177 mJy/yr at the brightest orbital phases and the pulse profile evolves from a single to a double peak, with a separation rate of 2.6 deg/yr. The pulse profile changes are most likely caused by relativistic spin precession, but can not be easily explained with a circular hollow-cone beam as in the model of Clifton & Weisberg (2008). Relativistic spin precession, coupled with an elliptical beam, can model the pulse profile evolution well. This particular beam shape predicts geometrical parameters for the two bright orbital phases which are consistent and similar to those derived by Breton et al. (2008). However, the observed decrease in flux over time and B's eventual disappearance cannot be easily explained by the model and may be due to the changing influence of A on B.
Keywords
Cite
@article{arxiv.1008.1097,
title = {The Evolution of PSR J0737-3039B and a Model for Relativistic Spin Precession},
author = {Benetge Perera and Maura McLaughlin and Michael Kramer and Ingrid Stairs and Robert Ferdman and Paulo Freire and Andrea Possenti and Rene Breton and Richard N. Manchester and Marta Burgay and Andrew Lyne and Fernando Camilo},
journal= {arXiv preprint arXiv:1008.1097},
year = {2015}
}
Comments
20 pages, 18 figures, Accepted by ApJ on 2 August 2010