X-ray imaging of a solar limb flare on 1982 January 22.

Details X-ray imaging of a solar limb flare on 1982 January 22. X-ray imaging of a solar limb flare on 1982 January 22.

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986soph..107..109t&link_type=abstract

Solar Physics, Volume 107, Issue 1, pp.109-121

Physics

6

Solar X-Ray Bursts

Scientific paper

Simultaneous X-ray images in hard (20 40 keV) and softer (6.5 15 keV) energy ranges were obtained with the hard X-ray telescope aboard the Hinotori spacecraft of an impulsive solar X-ray burst associated with a flare near the solar west limb. The burst was composed of an impulsive component with a hard spectrum and a thermal component with a peak temperature of 2.8 × 107 K. For about one minute, the impulsive component was predominant even in the softer energy range. The hard X-ray image for the impulsive component is an extended single source elongated along the solar limb, rather steady and extends from the two-ribbon Hα flare up to 104 km above the limb. The centroid of this source image is located about 10″ (7 × 103 km) ± 5″ above the neutral line. The corresponding image observed at the softer X-rays is compact and located near the centroid of the hard X-ray image. The source for the thermal component observed in the later phase at the softer X-rays is a compact single source, and it shows a gradual rising motion towards the later phase.

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