1. Observation Features - type III Type III bursts Characteristics: an intense band of emission drifting rapidly (~100MHz*s-1)from high to low frequencies.                   often repeated at the second harmonic                 often occur in groups of > 10 bursts, lasting a few minutes. Some detailed observation features: 1.Source region: It is found that F- and H-band waves observed at a fixed frequency occupy the same apparent source positions. 2.Frequency range: F-H pair emission usually occurs in a frequency range corresponding to a few MHz<f<200MHz. 3.Initial time delay: F component has a delay. 4.Directivity: F component has much higher directivity than the H component. [1] [2] Download images (local images only) as a tar.gz pack: Full Size Small Size

郭帆 Posted at 2006-12-22 01:14 CST Last modified at 2006-12-27 21:34 CST Link to this poster Source Code Top