Observation of an impulsive solar X-ray burst from a coronal source

Details Observation of an impulsive solar X-ray burst from a coronal source Observation of an impulsive solar X-ray burst from a coronal source

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...233l.151k&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 233, Nov. 1, 1979, p. L151-L155.

Astronomy and Astrophysics

Astronomy

68

Solar Corona, Solar Flares, Solar X-Rays, X Ray Astronomy, High Energy Electrons, International Sun Earth Explorer 3, Pioneer Venus 1 Spacecraft, Power Spectra

Scientific paper

Observations of the spatial, spectral, and temporal structure of an impulsive hard X-ray source in a behind-the-limb solar flare have been made with high-time-resolution hard X-ray detectors aboard two spacecraft, the International Sun Earth Explorer 3 (ISEE 3) and the Pioneer Venus Orbiter (PVO), which were separated in heliographic longitude by about 12.5 deg. The principal findings are that (1) the coronal part of the X-ray source is about 600 times less intense than the lower-altitude part of the source; and (2) the coronal X-ray observations are consistent with a power-law electron spectrum which extends down to about 5 keV.

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