Faculty of Science, Osaka City University/National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research/Faculty of Science, Osaka City University/The Institute of Space and Astronautical Science/Faculty of Science, Osaka City University/Faculty of Science, Rikkyo University/Faculty of Science, Osaka City University/The Institute of Space and Astronautical Science/Faculty of Science, Osaka City University/The Institute of Space and Astronautical Science/National Institute of Polar Research/Faculty of Science, Rikkyo University/Faculty of Science, Osaka City University/Osaka Shin-aijyogakuin High School/The Institute of Space and Astronautical Science/National Institute of Polar Research/Faculty of Engineering, Miyazaki University/Faculty of Engineering, Miyazaki University
抄録(英)
In the Polar Patrol Balloon (PPB) project, two balloons named PPB-8 and -10 were launched in rapid succession to form a cluster of balloons during their flight on January 13, 2003, from Syowa Station, Antarctica. In order to make the two-dimensional images for auroral X-rays and to obtain the energy spectra of auroras with energy range from 30 keV to 778 keV, the same instruments for hard X-rays were installed on PPB-8 and -10, respectively. These detection systems observed several auroral X-ray events during the flight. In particularly on January 25, 2003, strong auroral events were detected at about 0919 UT by PPB-10 and at 0927 UT by PPB-8. The aurora observed by PPB-10 was observed after about 8 min by PPB-8 located a 650 km west of PPB-10. The energy spectra of the bright aurora at 0919 UT and 0927 UT for PPB-10 and -8 is obtained as E0 = (78+-5) keV and (70+-5) keV, respectively.
Observations of hard X-rays of auroral origin with Polar Patrol Balloons No. 8 and 10
.png)
KJ00000729577
(1.58MB)
概要
