Department of Physics, Rikkyo University/National Institute of Polar Research/University of Electro-Communications/Department of Physics, Rikkyo University/Department of Physics, Rikkyo University/National Institute of Polar Research/The Institute of Space and Astronautical Science/Department of Physics, Yamanashi Medical College/Faculty of Science, Tohoku University
抄録(英)
A balloon observation of auroral X-rays was carried out over Syowa Station in Antarctica on December, 1985 by using a set of three inclined NaI (T1) scintillation counters. The energy-dependent structures of X-rays with energies greater than 22keV were measured. In a case study of the X-ray event occurred at 0145 UT on December 14,an X-ray source region moved toward lower latitudes with a velocity of about 1km/s. This experimental result was confirmed by a simulation calculation for auroral X-ray sources. The spatial distributions of auroral X-rays were found to be consistent with the north-south dependence of 30MHz cosmic noise absorption observed by a scanning-beam riometer at Syowa Station.
雑誌書誌ID
AA10756224
雑誌名
Proceedings of the NIPR Symposium on Upper Atmosphere Physics
Auroral X-ray images observed by B15-3 balloon over Syowa Station, Antarctica
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KJ00000035879.pdf
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概要
