Solar radio pulsating structures during September 9, 2001 atmeter wavelength

Pulsating structures recorded at 237 MHz that are associated to decimetric continuum enhancement during the September 9, 2001 solar radio burst are described. We analyzed the radiopolarimetric data recorded at the Trieste Solar Radio System (INAF-Trieste Astronomical Observatory-Basovizza Observing Station) with very high time resolution (1ms) at metric frequencies. Two different types of pulsations that occur in about 4minutes at the same frequency are described. The possible mechanisms are analyzed and some parameters of the associated magnetic structure are estimated.