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Journal Articles Science Year : 2013

Synchronous X-ray and Radio Mode Switches: a Rapid Global Transformation of the Pulsar Magnetosphere

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K. Zagkouris
  • Function : Author
P. Best
  • Function : Author
A. Bonafede
C. Ferrari
M. Iacobelli
G. Macario
  • Function : Author
R. Pizzo

Abstract

Pulsars emit low-frequency radio waves through to high-energy gamma-rays that are generated anywhere from the surface out to the edges of the magnetosphere. Detecting correlated mode changes in the multi-wavelength emission is therefore key to understanding the physical relationship between these emission sites. Through simultaneous observations, we have detected synchronous switching in the radio and X-ray emission properties of PSR B0943+10. When the pulsar is in a sustained radio 'bright' mode, the X-rays show only an un-pulsed, non-thermal component. Conversely, when the pulsar is in a radio 'quiet' mode, the X-ray luminosity more than doubles and a 100%-pulsed thermal component is observed along with the non-thermal component. This indicates rapid, global changes to the conditions in the magnetosphere, which challenge all proposed pulsar emission theories.
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Dates and versions

insu-01288734 , version 1 (17-03-2016)

Identifiers

Cite

W. Hermsen, J. W. T. Hessels, L. Kuiper, J. van Leeuwen, D. Mitra, et al.. Synchronous X-ray and Radio Mode Switches: a Rapid Global Transformation of the Pulsar Magnetosphere. Science, 2013, 339 (6118), pp.436-439. ⟨10.1126/science.1230960⟩. ⟨insu-01288734⟩
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