Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-26T19:47:29.745Z Has data issue: false hasContentIssue false
  • English
  • Français

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: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

References

Dai, S., et al. 2019, ApJ, 874, 2041 CrossRefGoogle Scholar
Dyks, J. 2017, MNRAS, 472, 4598 CrossRefGoogle Scholar
Johnston, S., et al. 2021, MNRAS, 502, 1253 CrossRefGoogle Scholar
Karastergiou, A., Johnston, S. & Kramer, M. 2003, A&A, 404, 325 Google Scholar
Sobey, C., et al. 2021, MNRAS, 504, 228 CrossRefGoogle Scholar