Abstract
In this paper we report on our observations of hard X-rays from several X-ray sources in the energy range 20–120 keV. The results were obtained from the data collected during two balloon flights made from Hyderabad, India (latitude 17.6°N, longitude 78.5°E). The first flight was made on April 28, 1968, and the balloon reached a ceiling of about 5.3 g cm−2 residual atmosphere and floated from 0230 to 0800 hrs. IST (Indian Standard Time). The second balloon was launched on December 22, 1968 and floated at about 7.5 g cm−2 of residual air from 1000 to 1130 hrs. IST.
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Agrawal, P.C. et al. (1970). Energy Spectra of Several Discrete X-ray Sources in the 20–120 keV Range. In: Gratton, L. (eds) Non-Solar X- and Gamma-Ray Astronomy. International Astronomical Union/Union Astronomique Internationale, vol 37. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-3311-4_13
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DOI: https://doi.org/10.1007/978-94-010-3311-4_13
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