@inproceedings{oai:jaxa.repo.nii.ac.jp:00003061, author = {河北, 秀世 and 小林, 仁美 and 猿楽, 祐樹 and Boice, Daniel C. and Kawakita, Hideyo and Kobayashi, Hitomi and Sarugaku, Yuki and Boice, Daniel C.}, book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe}, month = {Mar}, note = {SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (June 18-21, 2013. Ito Hall, the University of Tokyo), Bunkyou-ku, Tokyo, Japan, Comets are thought to be remnants of the planetesimals in the proto-planetary disk so that cometary ices provide us with precious clues of physical and chemical conditions in the early solar system. The mid-IR region is a very fruitful window to study the cometary volatiles since numerous ro-vibronic bands of molecules are observed simultaneously, and symmetric molecules can be accessed. However, because of the strong atmospheric extinction and the capability of previous instruments, there are only a few studies of cometary molecules in mid-IR regions with discontinuous limited wavelength regions or with low-dispersion spectroscopy. The mid-IR high-dispersion spectroscopy with SPICA could make a breakthrough discovery in the cometary volatiles like aliphatic hydrocarbons (e.g., C2H2, C2H4, C2H6), PAHs as well as the pre-biotic molecules (e.g., PH3). In this study, we discuss the feasibility to find new molecular species and to identify previously unidentified emission lines and the composition of those new species., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA1730027084, レポート番号: JAXA-SP-17-010E}, pages = {383--385}, publisher = {宇宙航空研究開発機構(JAXA), Japan Aerospace Exploration Agency (JAXA)}, title = {Chemical Evolution of Cometary Molecules Revealed through Mid-IR High-Dispersion Spectroscopy by SPICA}, volume = {JAXA-SP-17-010E}, year = {2018} }