星形成領域の円偏光と地球上の生命の起源
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(152) *EF> " . > . !. !"GH:I". J*KL ". MN. !"$%OP . QR )S*TUVW X Y>Z[O \>*&]> + S^ _` ><=* > abcdefg eh:i !? j *kl!" > #k$&mn %&*op&> )C'()2 '$%qr"]Jo* s 1 t+uv& wx>y,z- {+ J|}! MN!?. j s~> ]"*Y> F > ῐ. ῏ SIRPOL 5:. SIRPOL . f:OR ps/" + x J +x #0*1 23 456 78 49 :; <= >?@ A + ,. IRSF f:BC +x MN DE,F¡ Origins of Life and Evolution of Biospheres ¢G #£¤H ¥IMN&Y>12) #j¦§¨©JKMNª s. «F0¬j¬jMNLM®¯®O¢~. &Y> °±²; kNOFPs. «Q³´j. C +xµ + ¶·RY 1S¸T¹ºC +xµ U 103 ¼. U 11 ½. ῎῍ῑῌ 1) Graham J. R., Kalas P. G., Matthews B. C., 2007, ApJ 654, 595 2) Kusakabe N., et al., 2008, AJ 136, 621 3) Chrysostomou A., Lucas P. W., Hough J. H., 2007, Nature 450, 71 4) Special Feature: Initial Results from the Polarimetry Mode of IRSF/SIRIUS (SIRPOL), 2007, PASJ, 59 5) Clayton G. C., et al., 2005, ASPC 343, 122 6) Fukue T., 2009, Ph.D. Thesis, Kyoto University 7) Nagayama T., et al., 2003, SPIE 4841, 459 8) Kandori R., et al., 2006, SPIE 6269, 159 9) Bailey J., et al., 1998, Science 281, 672 10) Buschermo ¨hle M., et al., 2005, ApJ 624, 821 11) Tamura M., et al., 2006, ApJ 649, L29 12) Fukue T., et al., 2010, Orig. Life Evol. Biosph. 40, 335 13) Fukue T., et al., 2009, ApJ 692, L88 14) Bonner W. A., 1991, Orig Life Evol. Biosph. 21, 59 15) Cronin J. R., Pizzarello S., 1997, Science 275, 951 16) Bonner W. A., Bean B. D., 2000, Orig. Life Evol. Biosph. 30, 513 17) Takano Y., et al., 2007, E&PSL 254, 106 18) Bailey J., 2001, Orig. Life Evol. Biosph. 31, 167 19) Tachibana S., et al., 2006, ApJ 639, 87. Circular Polarizations in the Star-forming Region and the Origin of the Terrestrial Life Tsubasa FUKUE National Astronomical Observatory of Japan, 2ῌ 21ῌ1 Osawa, Mitaka, Tokyo 181ῌ8588, Japan Motohide TAMUTA National Astronomical Observatory of Japan/ SOKENDAI, 2ῌ21ῌ1 Osawa, Mitaka, Tokyo 181ῌ 8588, Japan Ryo KANDORI National Astronomical Observatory of Japan, 2ῌ 21ῌ1 Osawa, Mitaka, Tokyo 181ῌ8588, Japan Abstract : SIRPOL is the polarimetry mode of the SIRIUS camera on the IRSF 1.4 m telescope in South Africa. We can conduct a wide-field polarimetry in three near-infrared bands simultaneously; not only linear but also circular polarimetry. We have obtained near-infrared circular polarization images of the Orion star-forming region. We find that significant circular polarizations extend over a region »400 times the size of the Solar System. We also discuss the origin of the terrestrial life, inferred from this finding.. 687.
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