Radio observations of the December 20th, 2002, flares

CRISTIANI, G.; DE BENEDEDTTO E SILVA, I.; GIMÉNEZ DE CASTRO, C.G.; MANDRINI, C.H.; ROVIRA, M.G.; KAUFMANN, P.

Coimbra, Portugal

Congreso; Coimbra Solar Physics Meeting on The Physics of Chromospheric Plasmas; 2006

In this work we analyze a sequence of two solar flares ocurred on December 20, 2002. The events took place in the active region AR10226 (S26 W32) at 13:16 UT and 13:18 UT. Radio data at 1-405 GHz frequency range were obtained from the Solar Submillimeter Telescope (SST), Radio Solar Telescope Network (RSTN) and the patrol radiotelescopes of the Bern University, one of them working as a null interferometer at 89.4 GHz. Images from the Halpha Solar Telescope for Argentina (HASTA) were used to identify the possible emission sources.