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.

Mereghetti, S., Kuiper, L., Tiengo, A., Hessels, J., Hermsen, W., Stovall, K., et al. (2017). X-rays from the mode-switching PSR B0943+10. In Proceedings of the International Astronomical Union (pp.62-65). Cambridge University Press [10.1017/S1743921317009504].

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

Rigoselli M.
2017

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.
abstract + slide
pulsars: general; stars: neutron; X-rays: individual (PSR B0943+10)
English
Pulsar Astrophysics the Next Fifty Years
2017
Proceedings of the International Astronomical Union
2017
13
337
62
65
http://www.cambridge.org/uk/journals/journal_catalogue.asp?mnemonic=iau
none
Mereghetti, S., Kuiper, L., Tiengo, A., Hessels, J., Hermsen, W., Stovall, K., et al. (2017). X-rays from the mode-switching PSR B0943+10. In Proceedings of the International Astronomical Union (pp.62-65). Cambridge University Press [10.1017/S1743921317009504].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/240604
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