@inproceedings{oai:jaxa.repo.nii.ac.jp:00020450, author = {保田, 誠司 and 中本, 泰史 and 三浦, 均 and Yasuda, Seiji and Nakamoto, Taishi and Miura, Hitoshi}, book = {第40回月・惑星シンポジウム, Proceedings of the 40th ISAS Lunar and Planetary Symposium}, month = {Jul}, note = {We carried out three-dimensional hydrodynamics simulations to examine disruption of a molten dust particle exposed to fast gas flow and estimated the ejection velocity, average size and number density of ejectors in the framework of the shock-wave heating model. We found that the collision frequency predicted from our numerical results is much higher than observational frequency of compound chondrules. We also detected collisions among ejectors in our simulations and understood that 'shadow effect' (the gas flow is blocked out by ejectors) is important for their collisions. These results strongly suggest that compound chondrules can be formed by nebula shocks., 資料番号: AA0063723030}, pages = {128--132}, 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 = {Compound chondrule formation in the shock-wave heating model: Three-dimensional hydrodynamics simulation of disruption of the molten dust particle}, year = {2007} }