Morphology and Spectral Behavior of Solar Hard X-Ray
Lartey A. S, Ekwueme L.
Images of the 17 solar flares, corresponding to 61 individual
X-ray bursts observed in four energy ranges (14-23,23-33,33-53
and 53-93 keV) by hard X-ray telescope (HXT) experiment on
board of {\it Yohkoh} satellite have been investigated. The
images suggested the dimension of hard X-ray sources is of
the order of 20 arc sounds and they are of three types:
single isolated source ($\sim$30\%), double sources
($\sim$~41~\%), with typical minimum separation of 30 arc
seconds and multiple sources ($\sim$29\%). We have adjusted
single power law spectrum for the X-ray emissions in the
range of (20-830keV) using data of Hard X-ray Spectrometer
(HXS) experiment. Spectral time of these bursts has been
also investigated. Typical spectral index behavior is
¡Èsoft-hard-soft¡É.
Correspondence
Godfred Asamoah(aithinfo@fastermail.com), African Information Technology Holdings
Preference of Presentation
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