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The location and size of a solar hard X-ray burst on September 27, 1969
Authors:T. Takakura  K. Ohki  N. Shibuya  M. Fujii  M. Matsuoka  S. Miyamoto  J. Nishimura  M. Oda  Y. Ogawara  S. Ota
Affiliation:(1) Tokyo Astronomical Observatory, University of Tokyo, Mitaka, Tokyo, Japan;(2) Institute of Space and Aeronautical Science, University of Tokyo, Meguro, Tokyo, Japan
Abstract:The location and size of a solar impulsive hard X-ray burst have been determined in one dimension to a considerable precision with a balloon-borne X-ray modulation collimator. The center of the X-ray source is on the line passing through the center of a big Hagr flare region of 3 arc min. The size of the X-ray source is remarkably smaller and may be one arc min or less.
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