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Balloon observations of Sco X-1 in the energy interval 17–106 keV
Authors:A K Jain  U B Jayanthi  K Kasturirangan  U R Rao
Institution:(1) Physical Research Laboratory, Ahmedabad, India
Abstract:The paper presents the intensity and spectral nature of the X-ray emission from Sco X-1 in the energy interval 17–106 keV based on the observations made by a balloon borne scintillation telescope system flown on November 15, 1971 from Hyderabad, India. In the 25–53 keV interval, the spectral distribution is observed to correspond to akT value of 
$$5.5\begin{array}{*{20}c}   { + 1.5}  \\   { - 1.1}  \\ \end{array} \} $$
keV assuming the shape to be exponential. Over the complete energy range of observation, a power law function with the value of exponent equal to 3.6±0.5 seems to yield an adequate fit. Comparing the present data with those obtained elsewhere, the temporal characteristics of the X-ray emission from Sco X-1 are discussed.
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