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The Fine Structure Of Solar Radio High Time High Frequency Resolution Observation And Study

Posted on:2002-08-07Degree:DoctorType:Dissertation
Country:ChinaCandidate:M WangFull Text:PDF
GTID:1110360032456349Subject:Astronomy
Abstract/Summary:PDF Full Text Request
In this thesis, the field of solar radio fast fine structures was investigated. I find that, many fast fine structures have not been resolved in the plane of the frequency and the time, or they have not been detected because of the relatively lower technical parameters, such as time resolution, spectral resolution, frequency range, polarization measurement, and sensitivity of the observing instruments, The observational data of fast fine structures are not abundant, specially in the high part of microwave (centimetric wavelength). Moreover, the classification of the fast fine structures is morphological. Based on the observational data of the new broad band fast solar radio spectrometer of China, I have studied the fast fine structures for several years. The major findings are: (l)The time delay between the two polarization modes and the reversal of the two polarization mode of the weak polarized microwave spikes were found and interpreted; (2)Through a statistics of large samples, a smaller and relatively reliable values of the relative bandwidth of the decimetric spikes was given and the other observational characteristics of these decimetric spikes were discuss; (3)The microwave type U bursts with high polarization degree were discovered and explained for the first time (4)The generation and position of biderectional electron beams were discussed; (5)High polarized microwave type III burst and its quasi- periodic oscillations were studied; (6)The first report and research of the microwave high polarized patch structures were given; (7)The first report and research of the centimetric type N and type M bursts; (8)Combining high spatial resolution data, a moving type IV burst and its associated fast fine structures were investigated;...
Keywords/Search Tags:the Sun, solar radio bursts, fast fine structures
PDF Full Text Request
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