@inproceedings{oai:jaxa.repo.nii.ac.jp:00020654,
 author = {関根, 康人 and 紫藤, 貴文 and 杉田, 精司 and 松井, 孝典 and 山本, 孝 and 岩澤, 康裕 and Sekine, Yasuhito and Shido, Takafumi and Sugita, Seiji and Matsui, Takafumi and Yamamoto, Takashi and Iwasawa, Yasuhito},
 book = {第36回月・惑星シンポジウム, Proceedings of the 36th ISAS Lunar and Planetary Symposium},
 month = {Nov},
 note = {Fischer-Tropsch catalysis, in which CO and H2 are converted into CH4 over iron catalyst, has been suggested to play a key role in the circumplanetary nebula for the origin of CH4 in the atmosphere of Jupiter, Saturn and Titan. Experimentally investigated was the methane formation rate over iron catalyst under conditions similar to those within the circumplanetary nebula (P = 0.09-0.53 bar, T = 500-650 K, H2/CO = 1000). The results show that the methane production does not simply increase as the temperature rises predicted by the previous work, and it proceeds efficiently between T = 525 and 625 K. The results also suggest that the conversion of CO into CH4 in the circumplanetary nebula may proceed in short time and CH4-rich subnebula may be formed at early stage of its evolution. The organics, formed by the disequilibrating process from CH4, may affect the formation time of satellites and be supplied to the icy satellites., 資料番号: AA0046650005},
 pages = {17--20},
 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 = {The implications of Fischer-Tropsch catalysis for the nebula chemistry},
 year = {2003}
}