Prediction of solar flare proton spectral slope from radio burst data

Details Prediction of solar flare proton spectral slope from radio burst data Prediction of solar flare proton spectral slope from radio burst data

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84..131b&link_type=abstract

Journal of Geophysical Research, vol. 84, Jan. 1, 1979, p. 131-137.

Astronomy and Astrophysics

Astronomy

7

Energy Spectra, Radio Astronomy, Solar Protons, Solar Radio Bursts, Prediction Analysis Techniques, Statistical Correlation

Scientific paper

Correlations between the width of the U-shaped peak-flux-density spectra of solar radio bursts and the slope of the associated proton energy spectra observed by satellites have been studied. It is found that the wider radio-spectrum U's lead to shallow proton energy slopes (harder spectrum), while narrower U's lead to steeper slopes (softer spectrum). Of the straight-line, power-law, and exponential forms used to study the correlations, the power-law form yields the best correlation (correlation coefficient of approximately 0.77). This leads to a practical prediction scheme which can be used in real time for forecasting the spectral character of the protons that can be expected to arrive in the vicinity of the earth on the basis of the continuously monitored radio-burst data.

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