Radio Observations of the December 20, 2002 Flares

摘要

Solar flare observations at mm-λ and submm-λ are an important diagnostic tool of particle acceleration processes and energy release (White & Kundu 1992). In that spectral range, gyrosynchrotron from mildly relativistic electrons and thermal bremsstrahlung are the main emission mechanisms. Gyrosynchrotron emission analysis allows to infer the physical conditions in flaring regions. As X-ray emission, it may be used to derive the electron distribution function, althought unlike X-ray emission, gyrosynchrotron emission is also a sensitive function of the magnetic field.