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X-ray properties of the mode-switching pulsar PSR B0943+10

Abstract : The mode-switching pulsar PSR B0943+10 has been extensively studied in the radio band for many years and, more recently, it has been found to vary also in X-rays, with a flux anticorrelated with the radio emission. Here we review the results of long observations of PSR B0943+10 carried out with XMM-Newton and the LOFAR, LWA and Arecibo radio telescopes in 2014. These results support a scenario in which both unpulsed non-thermal emission, likely of magnetospheric origin, and pulsed thermal emission from a small polar cap (~1500 m2) with a strong non-dipolar magnetic field (~ 1014 G), are present during both radio modes and vary in intensity in a correlated way.
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S. Mereghetti, L. Kuiper, A. Tiengo, J. Hessels, W. Hermsen, et al.. X-ray properties of the mode-switching pulsar PSR B0943+10. Journal of Physics: Conference Series, IOP Publishing, 2017, International Conference Physics of Neutron Stars - 2017. 50 years after. 10–14 July 2017, St. Petersburg, Russian Federation, 932, pp.012009. ⟨10.1088/1742-6596/932/1/012009⟩. ⟨insu-02940787⟩

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