@inproceedings{oai:jaxa.repo.nii.ac.jp:00020503, author = {納田, 明達 and 榎森, 啓元 and 中澤, 清 and Noda, Akiyoshi and Emori, Hiroyuki and Nakazawa, Kiyoshi}, book = {第39回月・惑星シンポジウム, Proceedings of the 39th ISAS Lunar and Planetary Symposium}, month = {Aug}, note = {Collisions between protoplanets are common events in the later stage of planetary formation process. Protoplanets grew into present planets through these collisional events. So it is necessary to obtain information about redistribution of mass and angular momentum between colliding two bodies to study the growth rates of planets and the origin of their spin., 資料番号: AA0063505041}, pages = {158--161}, publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)}, title = {Collisions between protoplanets, the dependence of the collisional cross section upon the impact energy}, year = {2006} }