Variations of solar X-ray fluxes during active-region evolution

Details Variations of solar X-ray fluxes during active-region evolution Variations of solar X-ray fluxes during active-region evolution

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987kfnt....3...49e&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 3, Mar.-Apr. 1987, p. 49-53, 62. In Russian.

Astronomy and Astrophysics

Astronomy

Periodic Variations, Radiant Flux Density, Solar Activity, Solar X-Rays, Calcium, Coronal Loops, Faculae, Plasma Temperature, Spaceborne Astronomy, Statistical Analysis

Scientific paper

On the basis of Solrad-9 data, a power-law dependence was found to exist between the nonflare X-ray fluxes of different active regions in the 0.1-0.8 nm and 0.8-2 nm spectral intervals. Numerical simulation of the static coronal loop revealed that this interdependence is due to a pressure variation at the base of the upper-chromospheric coronal loops. Consequently, brightness variations are found in the K Ca II line.

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