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A new model for nulling and moding in radio pulsars

Published online by Cambridge University Press:  27 February 2023

Jaroslaw Dyks Open the ORCID record for Jaroslaw Dyks [Opens in a new window]
Jaroslaw Dyks*
Affiliation:
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, 87-100 Toruń, Poland email: [email protected]
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Abstract

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Single pulse behaviour of radio pulsars is usually interpreted in terms of the E × B 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.

Keywords

pulsars: generalpulsars: individual (PSR B0826−34, PSR B1237+25, PSR B1919+21)
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S363: Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution , June 2020 , pp. 340 - 341
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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