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Organised polarisation variability in radio pulsars and consequences for emission theory

Published online by Cambridge University Press:  04 June 2018

Cristina-Diana Ilie  and
Patrick Weltevrede
Cristina-Diana Ilie
Affiliation:
Jodrell Bank Centre of Astrophysics, University of Manchester, Alan Turing Building, M13 9PL, Manchester, United Kingdom email: [email protected]
Patrick Weltevrede
Affiliation:
Jodrell Bank Centre of Astrophysics, University of Manchester, Alan Turing Building, M13 9PL, Manchester, United Kingdom email: [email protected]
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Abstract

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The aim of this work is to explore the connection between variability in single pulse intensity and periodic switching of the position angle (PA) of the linear polarisation and how this relates to the radio emission mechanism. There are five pulsars reported in the literature for which the PA is seen to periodically change in tandem with the variability in their pulse shapes. This behaviour is seemingly incompatible with two well established models of the radio emission mechanism. The purpose of this study is to investigate in a systematic way whether this phenomenon is common or if only happens in special cases, using a high-quality sample of pulsar data observed with the Parkes telescope. We show that the connection between polarisation variability and intensity variability is more common than previously expected.

Keywords

pulsars : generalpolarizationPSR B0031–07
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S337: Pulsar Astrophysics the Next Fifty Years , September 2017 , pp. 79 - 82
Copyright
Copyright © International Astronomical Union 2018 

References

Arons, J., & Barnard, J. J., 1986, ApJ, 302, 120Google Scholar
Backer, D. C., Rankin, J. M., & Campbell, D. B., 1976, Nature, 263, 202Google Scholar
Chen, T. 2015, MSc Thesis, The University of ManchesterGoogle Scholar
Deshpande, A. A., & Rankin, J. M., 1969, MNRAS, 322, 438CrossRefGoogle Scholar
Drake, F. D., & Craft, H. D., 1969, Nature, 220, 231Google Scholar
Edwards, R. T., 2004, A&A, 426, 677Google Scholar
Gangadhara, R. T., 1997, A&A, 327, 155Google Scholar
Hassall, T. E., Stappers, B. W., Weltevrede, P., et al., 2013, A&A, 552, A61Google Scholar
Hewish, A., Bell, S. J., Pilkington, J. D. H., Scott, P. F., & Collins, R. A., 1968, Nature, 217, 709CrossRefGoogle Scholar
Huguenin, G. R., Taylor, J. H., & Troland, T. H., 1968, ApJ, 162, 727Google Scholar
Ilie, C. D., Weltevrede, P. & Johnston, S. in prepGoogle Scholar
Melrose, D. B., 1979, PASA, 32, 61Google Scholar
Radhakrishnan, V., & Cooke, D. J., 1969, Ap. Lett., 3, 225Google Scholar
Rankin, J. M., & Ramachandran, R., 2003, ApJ, 590, 411Google Scholar
Ramachandran, R., Rankin, J. M., & Stappers, B. W., et al., 2002, A&A, 381, 993Google Scholar
Rookyard, S. C., Weltevrede, P., & Johnston, S., 2015, MNRAS, 446, 3367CrossRefGoogle Scholar
Ruderman, M. A., & Sutherland, P. G., 1975, ApJ, 196, 51Google Scholar
Smits, J. M., Mitra, D., & Kuijpers, J., 2005, A&A, 440, 683Google Scholar
Smits, J. M., Mitra, D., & Stappers, B. W., et al., 2007, A&A, 465, 575Google Scholar
van Leeuwen, A. G. J., Kouwenhoven, M. L. A., & Ramachandran, R., et al., 2002, A&A, 387, 169Google Scholar
Weltevrede, P., Edwards, R. T., & Stappers, B. W., 2006, A&A, 445, 243Google Scholar
Weltevrede, P., 2016, A&A, 590, 109Google Scholar