@inproceedings{oai:jaxa.repo.nii.ac.jp:00014447, author = {山田, 剛治 and 高柳, 大樹 and 鈴木, 俊之 and 藤田, 和央 and Yamada, Gouji and Takayanagi, Hiroki and Suzuki, Toshiyuki and Fujita, Kazuhisa}, book = {宇宙航行の力学シンポジウム, Symposium on Flight Mechanics and Astrodynamics}, month = {Dec}, note = {宇宙航行の力学シンポジウム(平成20年度)(2008年12月4~5日、宇宙航空研究開発機構宇宙科学研究本部), Symposium on Flight Mechanics and Astrodynamics 2008 (December 4-5, 2008. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)), Sagamihara, Kanagawa Japan, To investigate the influence of electronic state on the relaxation process of nitrogen molecule behind a shock wave, spectroscopic measurement is conducted using a free-piston double diaphragm shock tube. The shock velocity and the spectrum position from the shock front are determined by the double laser schliren measurement system which is newly developed for precise measurement. Emission spectra of N2(1+) and N2(2+) are obtained by means of the time resolved imaging spectroscopy. Rovibrational temperatures are derived from N2(1+) and N2(2+) and finally temperatures distributions correleated to the shock front are obtained. The measured rotational temperature of N2(2+) is lower than that of N2(2+) and N2(+)(1-). The rotational relaxation of N2(2+) looks slower than that of N2(l+) and N2(+)(1-). In contrast, the measured vibrational temperatures are close to each other and agree well with the prediction of the two-temperature model., 資料番号: AA0064729024}, 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)}, title = {異なる電子遷移スペクトルから求めた衝撃波背後の窒素分子の緩和現象}, volume = {平成20年度}, year = {2009} }