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A broad-band perspective on circular polarization in radio pulsar observations

Published online by Cambridge University Press:  27 February 2023

Lucy S. Oswald Open the ORCID record for Lucy S. Oswald [Opens in a new window]
Lucy S. Oswald*
Affiliation:
Department of Astrophysics, University of Oxford, Denys Wilkinson building, Keble road, Oxford OX1 3RH, UK Magdalen College, University of Oxford, Oxford OX1 4AU, UK email: lucy.oswald@physics.ox.ac.uk
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Abstract

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We investigate the broad-band behaviour of circular polarization in radio pulsar profiles and show the relationship between polarization fraction and what proportion of that polarization is circular, both across frequency, and for a large number of pulsars viewed collectively. The behaviour observed may be explained by pulsar polarization originating from the partially-coherent combination of two linearly-polarized orthogonal modes with different flux spectral indices. (See also the poster in the “supplementary information”.)

Keywords

pulsars: generalpolarization
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. 332 - 334
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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