Produção Nacional
Revisado por pares
Microwave and hard X-Ray observations of a solar flare with a time resolution better than 100 ms
1983; Springer Science+Business Media; Volume: 84; Issue: 1-2 Linguagem: Inglês
10.1007/bf00157464
ISSN1573-093X
AutoresP. Kaufmann, F. M. Strauss, J. E. R. Costa, B. R. Dennis, A. L. Kiplinger, K. J. Frost, L. E. Orwig,
Tópico(s)Magnetic confinement fusion research
ResumoSimultaneous microwave and X-ray observations are presented for a solar flare detected on May 8, 1980 starting at 19:37 UT. The X-ray observations were made with the Hard X-Ray Burst Spectrometer on the Solar Maximum Mission and covered the energy range from 28–490 keV with a time resolution of 10 ms. The microwave observations were made with the 5 and 45 foot antennas at the Itapetinga Radio Observatory at frequencies of 7 and 22 GHz, with time resolutions of 100 ms and 1 ms, respectively. Detailed correlation analysis of the different time profiles of the event show that the major impulsive peaks in the X-ray flux preceded the corresponding microwave peaks at 22 GHz by about 240 ms. For this particular burst the 22 GHz peaks preceded the 7 GHz by about 1.5 s. Observed delays of the microwave peaks are too large for a simple electron beam model but they can be reconciled with the speeds of shock waves in a thermal model.
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