@article{oai:jaxa.repo.nii.ac.jp:00036724, author = {渡部, 潤一 and 田部, 一志 and 長谷川, 均 and 橋本, 岳真 and 布施, 哲治 and 吉川, 真 and 阿部, 新助 and 鈴木, 文二 and WATANABE, Jun-ichi and TABE, Isshi and HASEGAWA, Hitoshi and HASHIMOTO, Takema and FUSE, Tetsuharu and YOSHIKAWA, Makoto and ABE, Shinsuke and SUZUKI, Bunji}, journal = {The Institute of Space and Astronautical Science report. S.P. : Proceedings of the 2002 International Science Symposium on the Leonid Meteor Storms}, month = {Mar}, note = {During the 2001 Leonids storm over Japan, several short-duration "outbursts" inwhich more than 20-40 meteors appeared in a few seconds, have been reported. The meteors in theseevents were extremely localized within a few hundred km, which suggest the recent fragmentationof meteoroids during the orbital motion in the interplanetary space. Considering the extent ofthe spatial distribution, we conclude that the fragmentation should have occurred at around theperihelion passage of the meteoroids just before encountering the Earth., 資料番号: SA4657954000}, pages = {223--226}, title = {Meteoroid Clusters in Leonids}, volume = {15}, year = {2003} }