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LOFAR observations of the mode-switching pulsar B0943+10

  • Anna V. Bilous (a1)

Abstract

PSR B0943+10 is an old non-recycled pulsar which for decades has been mostly known for its rapid and spontaneous radio mode switching. Recently, Hermsen et al. (2013) discovered correlated changes in the thermal X-ray emission from the polar cap, thus demonstrating that radio modes are not just a product of the local changes in the radio emission region, but a sign of some global magnetospheric transformation. At about the same time, owing to the commissioning of the new generation of low-frequency radio arrays, the broadband observations at the lowest edge of ionospheric transparency window became available. At these radio frequencies profile morphology and the single-pulse properties of PSR B0943+10’s emission become very dynamic, providing details not only about the emission itself, but also about the conditions in the polar gap. Here, I will present the recent results of the LOFAR observations of PSR B0943+10 and discuss their contribution to the multiwavelength picture.

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References

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Backus, I., Mitra, D., & Rankin, J. M., 2010, MNRAS, 41, 30
Bilous, A. V., Hessels, J. W. T., Kondratiev, V. I., et al. 2014, A&A, 572, A52
Bilous, A. V. 2017, submitted to A&A, ArXiv Astrophysics e-prints, 2017arXiv171005621B
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Hassall, T. E., Stappers, B. W., Weltevrede, P., et al., 2013, A&A, 552, A61
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LOFAR observations of the mode-switching pulsar B0943+10

  • Anna V. Bilous (a1)

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