A new model for nulling and moding in radio pulsars
Abstract
Single pulse behaviour of radio pulsars is usually interpreted in terms of the ExB drift of a radio beam. It is shown that antisymmetric arrangement of the radio-bright zones can produce several types of observed single pulse phenomena: the half-cycle jump in subpulse modulation phase, left-right-middle subpulse sequence and switching between the core-dominated and cone-dominated pulsation modes. The geometry can also produce nulling, both sporadic and intermodal. The model implies that the radio-quiet intervals that separate the main pulse and interpulse in PSR B0826-34 correspond to azimuthal breaks in the radio beam, instead of breaks in colatitude.
Cite
@article{arxiv.2203.05572,
title = {A new model for nulling and moding in radio pulsars},
author = {J. Dyks},
journal= {arXiv preprint arXiv:2203.05572},
year = {2023}
}
Comments
2 pages, 1 figure, Proceedings IAU Symposium No. 363, 2022, Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution, E. Troja & M. Baring, eds