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arXiv · 1711.04477

X-rays from the mode-switching PSR B0943+10

S. Mereghetti·L. Kuiper·A. Tiengo·J. Hessels·W. Hermsen·K. Stovall·A. Possenti·J. Rankin·P. Esposito·R. Turolla·D. Mitra·G. Wright·B. Stappers·A. Horneffer·S. Oslowski·M. Serylak·J. -M. Griessmeier·M. Rigoselli
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Abstract

New simultaneous X-ray and radio observations of the archetypal mode-switching pulsar PSR B0943+10 have been carried out with XMM-Newton and the LOFAR, LWA and Arecibo radio telescopes in November 2014. They allowed us to better constrain the X-ray spectral and variability properties of this pulsar and to detect, for the first time, the X-ray pulsations also during the X-ray-fainter mode. The combined timing and spectral analysis indicates that unpulsed non-thermal emission, likely of magnetospheric origin, and pulsed thermal emission from a small polar cap are present during both radio modes and vary in a correlated way.

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S. Mereghetti, L. Kuiper, A. Tiengo, J. Hessels, W. Hermsen, K. Stovall, A. Possenti, J. Rankin, P. Esposito, R. Turolla, D. Mitra, G. Wright, B. Stappers, A. Horneffer, S. Oslowski, M. Serylak, J. -M. Griessmeier, M. Rigoselli. 2017-11-13. X-rays from the mode-switching PSR B0943+10. https://doi.org/10.1017/s1743921317009504

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