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(81) K*{, Planet-C 0€‚ 1#79+B *{)"ƒ.vV$% J„2p W8d7!+J Q†‡ 1p7ˆ94)")7‰>+ BQ?Šf. 215 2) ›šœ?@ 1996, J‘AB CžŸJ ‘ 1 3) 8A– D+ ¡ 2000, =>M" 93, 123 4) Miller S. L., Schresinger G., 1984, Origins of Life 14, 83 5) Niemann H. B., et al., 2005, Nature, 438, 779. 6) ?!1¢£¤¢ 2005, =>M" 98, 7 7) Tian F., Toon O. B., Pavlov A. A., De Sterck H., 2005, Science 308, 1014 8) Strom R G., Malhotrs R., Ito T., Yoshida F., Kring D. A., 2005, Science 309, 1847 9) ¥E F ;¦™ 2007, =m §G+mP‘¨©ª 54, 5 10) Sagan C., Mullen G.1972, Science 177, 52 11) Walker J. C. G., Hays P. B., Kasting J. F., 1981, J. Geophys. Res. 86, 9776 12) «¬<H ­®¯I 1998, °JJK± 12) L²³: 2000, ´µ¶·¤J‘ 14) Zahnle K. J., Abe Y., Abe-Ouchi A., Sleep N. H., 2006, 37th Annual Lunar and Planetary Science Conference, abstract no. 2359 15) Yurimoto H., Kuramoto K., 2004, Science 305, 1763 16) Mš N ¸+ ¹ 2008, Oº‘ 66, 83. Origin, Evolution, and Diversities of Habitable Planets Kiyoshi KURAMATO Dapartment of Cosmosciences, Hokkaido University Yutaka ABE Department of Earth and Planetary Sciences, University of Tokyo George HASHIMOTO Graduate School of Natural Science and Technology, Okayama University Yoshi-Yuki HAYASHI Graduate School of Sciences, Kobe University Yasuhito SEKINE Department of Earth and Planetary Sciences, University of Tokyo Mitsuteru SATO Dapartment of Cosmosciences, Hokkaido University. >"'()‹Œ O‹ Œ 3‰Ž789+ DEFGH ;<56 %4^7pB+>C. 

(82) _`Q J‘ '(O7’5 !4“4‘6 n7” 7_•d.  1) 8A– —˜9™: š; - 102 ». -3¼. < 2003, =>M" 96,. Abstract : What conditions should be satisfied to form a habitable planet? Concurrent searches for the early state of terrestrial planet atmosphere as a potential field of abiotic synthesis of precursor of life, for the long-term climatic stability of surface liquid water, and for the origin of planetary water are reviewed with their relationship to the future sciences on extrasolar planets. 189.

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