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An extended radio emission after a soft X-ray (SXR) maximum was detected inthe active region NOAA 9077 by several observatories for the solar flare after21:42 UT on July 10, 2000. Also some radio fine structures before the enduringradio emission were observed with the 1.0-2.0 GHz spectrometer of BeijingAstronomical Observatory (BAO) in the same time. We apply a shear-drivenquadrupolar reconnection model (SQR) to analyze the fine structures and therelated radio emission. We find that the footpoint shear motion of the fluxloop is accompanied with the emerging up of the loop during the reconnectionprocess. We tentatively interpret the extended radio emission as the nonthermalradiation caused by a new reconnection process between emerging flux loop andpre-existing overarching loop after the soft X-ray maximum.Comment: 4 pages, A&A Letters, 2001, in pres

Extended radio emission after the soft X-ray maximum of the NOAA 9077 AR solar flare on July 10, 2000