Origin of the Submillimeter Radio Emission During the Time-Extended Phase of a Solar Flare

  title={Origin of the Submillimeter Radio Emission During the Time-Extended Phase of a Solar Flare},
  author={G{\'e}rard Trottet and Jean Pierre Raulin and G. Gim{\'e}nez de Castro and Thomas L{\"u}thi and Amir Caspi and Cristina H. Mandrini and Mar{\'i}a Luisa Luoni and Pierre Kaufmann},
  journal={Solar Physics},
Solar flares observed in the 200 – 400 GHz radio domain may exhibit a slowly varying and time-extended component which follows a short (few minutes) impulsive phase and can last for a few tens of minutes to more than one hour. The few examples discussed in the literature indicate that such long-lasting submillimeter emission is most likely thermal bremsstrahlung. We present a detailed analysis of the time-extended phase of the 27 October 2003 (M6.7) flare, combining 1 – 345 GHz total-flux radio… 

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