A new model for nulling and moding in radio pulsars [HEAP]

http://arxiv.org/abs/2203.05572


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.

Read this paper on arXiv…

J. Dyks
Mon, 14 Mar 22
21/67

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