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Coherent Synchrotron Radiation in Laboratory Accelerators and the Double-Spectral Feature in Solar Flares

Published online by Cambridge University Press:  12 September 2017

Wellington Cruz ,
Sérgio Szpigel ,
Pierre Kaufmann ,
Jean-Pierre Raulin  and
Michael Klopf
Wellington Cruz
Affiliation:
CRAAM, Mackenzie University, 01302-907, São Paulo, Brazil
Sérgio Szpigel
Affiliation:
CRAAM, Mackenzie University, 01302-907, São Paulo, Brazil
Pierre Kaufmann
Affiliation:
CRAAM, Mackenzie University, 01302-907, São Paulo, Brazil
Jean-Pierre Raulin
Affiliation:
CRAAM, Mackenzie University, 01302-907, São Paulo, Brazil
Michael Klopf
Affiliation:
Institute of Radiation Physics, Helmholtz-Zentrum, Dresden, Germany
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Abstract

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Recent observations of solar flares at high-frequencies have provided evidence of a new spectral component with fluxes increasing with frequency in the sub-THz to THz range. This new component occurs simultaneously but is separated from the well-known microwave spectral component that maximizes at frequencies of a few to tens of GHz. The aim of this work is to study in detail a mechanism recently suggested to describe the double-spectrum feature observed in solar flares based on the physical process known as microbunching instability, which occurs with high-energy electron beams in laboratory accelerators.

Keywords

Solar flaresCoherent synchrotron radiationMicrobunching instability
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S328: Living Around Active Stars , October 2016 , pp. 134 - 136
Copyright
Copyright © International Astronomical Union 2017 

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