Journal of The Korean Astronomical Society (천문학회지)

The Korean Astronomical Society (한국천문학회)
권호 표지

VARIATIONS OF THE SOLAR FLARE ENERGY SPECTRUM OVER TWO ACTIVITY CYCLES (1972 - 1995)

  • KASINSKY V. V. (Department of Physics, Irkutsk State University) ;
  • SOTNIKOVA R. T. (Department of Physics, Irkutsk State University)
  • Published : 1996.12.01
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Abstract

Based on X-ray (1-8 ${\AA}$) flux data for 1972-1995 the integral spectra of solar flare energy were computed. It has been shown that the spectral index $\beta$ of the integral energy spectrum (IES) vanes systematically with the 11-year cycle phase. The interval of $\beta$-variations (0.47 <$\beta$<1) is characteristic of UV-Cet stars. The maximum energy of the X-ray flares does not exceed $10^{32}$ erg.

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