The balloon observations of small cosmic X-ray bursts |
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| Authors: | Y Ogawara M Matsuoka S Miyamoto N Muranaka J Nishimura M Oda |
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| Institution: | (1) Institute of Space and Aeronautical Science, University of Tokyo, Komaba, Tokyo, Japan;(2) Nippon Electric Co., Ltd., Kawasaki |
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| Abstract: | In the record of the balloon observation which was performed on 27 September, 1970, a transient burst of X-rays was found. This event is concluded to be a cosmic gamma-ray burst of a smaller size or of a larger distance compared to the Vela bursts observed over the X-ray energy range. The energy spectrum is consistent with that of some of the Vela bursts. The time profile of the event is qualitatively similar to the 27 April, 1972 event studied by Apollo 16. The detection of small bursts over the X-ray energy range by the balloon observation during a period of the order of 10 to 100 h is not surprising considering a probable frequency-size distribution of the burst.Paper presented at the COSPAR Symposium on Fast Transients in X- and Gamma-Rays, held at Varna, Bulgaria, 29–31 May, 1975. |
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