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23 April 2024

» arxiv » 1302.0203

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Synchronous X-ray and Radio Mode Switches: a Rapid Global Transformation of the Pulsar Magnetosphere
W. Hermsen ; J.W.T. Hessels ; L. Kuiper ; J. van Leeuwen ; D. Mitra ; J. de Plaa ; J. M. Rankin ; B.W. Stappers ; G.A.E. Wright ; LOFAR's pulsar ; builders group ;
Date:	1 Feb 2013
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.
Source:	arXiv, 1302.0203
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