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金星大気の近赤外線分光撮像観測

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(20) 9019". V  2002  12. WX234 OAO 01!Y

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(22)  <9" 2002  12 WX  01 %a& 1 bWc2!/ '(#)d  e$ f01gdL 20hῌ 35h *9i+e2 01jk 37῏῏ῌ43῏῏ e 01!Y,l- 70ῌ77m 2 no'01!Y

(23) 2p.$fX!"  2 OAO  188 cm /qEF r bs?tuv021w)GHI2*xyz 3 SuperOASIS {|}~ HgCdTe 256€256 pixel, D 98 ». D1¼. š 3. 2*xy 2.30 mm 01!ºy5) 29.

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(25) ῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῎. 5yz kfgK({? ŽŠ;d 78 +]58:*‘’TK( N w &“kKZ^.N$B[( \)-N& Mk96,EK;hg$i (&*9&6:”6;&  X#0 YZF•N$B ) M(+- + ]5 K(";.N<– =M(+t  . 3. ῌ ῌ CO.

(26)   3.1  4. ! "#$% (2.28¸0.02 mm) ' <=6).   . 2.3 mm  < =  G  —>˜  ; ™ š  ? › (CO) ;w(I <=G6@œ$$ žŸ +Kt ¡ 5¢ ~R€+]5. 

(27)  2 . ;M$žŸ  A<=:@G9m.    4 . CO ~0hg$BK £& ¤+F¥N. !. "#$% &'(). Vk6:@G6 CO ¦§C+D¨I (&. * +, - . /0123

(28) + 4. ©ª )7) <= CO ~0;)?E@. 56& +78   4 9&6:;<. «œH V( k6& + «œHN&. =>? <=)@AB. :@G69&6¬hg$B/+«6. CD+6&  E; F 26ῌ. & M(; E@G8 :@GF¤,. 45 km :@G BH(I J K6. ­()@ ®¯ CO ~0 EF6&¥G°. 9? BL;). ± ¡²°±¢ G³ 4´vµ  . !"#6& . MN$BO P012KQ. 8~R€+]5¶· CO ~0hg$B. RST; U%8VW&N3

(29) <=X#0YZ ' $B' 3 [( \)- *  PLANET-C/VCO +]5;,^_`GaK b=( cde-8 fg./0 [( F&hg$i) j? Mk ?lF9m )n1op%K8 <=GqrsY0  8I M(+t  + $Bu.N[( \)I 23+4 &vk6&N&w u.N[(x6;5 yz k8) M(+-N& {  |}~R€+]5‚ƒj6 „r0 Y0†0+]5;$BK ‡ˆ(  + ‰Š;<="‹Œ(& 30.  5. 2.3 mm >j¹0ºYT$9l$ž ŸH  j¹;Ž»JIJoX$ P KL¼(. 2005 M 1 ¼.

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(32)    . CO . !"#$%

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(37) EFGH IJG 44 HK D LMN%. OMPQRSTU&V.  WXYHZ[\ 4],-/^_\. C 7. .E` '&Va C 3 D LC 4. 2.29 mm &WXYH5op' CO " —qrdv wg´. b/cFGH$d&e046 fWXghgiE RSTU. ˜™š˜K › HITEMP I“”“œ8e

(38) ". jkl'`mn3B 2.29 mm. —QRSTU˜™š˜K ~˜™š˜. &WXYH5op'gC 7 &V bC. 

(39)  “H 48 km %. FGHMN%. & CO qrd&. &,-/  ˜}¡¢£¤¥¤. V 2.32 mm a'stsuRSTUjk. ¦§¨S U

(40) v  •–. v wgVg. ,- fWX $©46 qr¡. /0žŸ. w;x CO yzm`i3. D Lª,-« ¬€3­. '  V/ {|} ~. ®^ I¯a°±K ²"³•–RSTU.  € ' |‚ƒ3„ g V  †‡3Va, fWXˆ‰3 1 Š‹ two stream OŒ WXŽU8), 9)‘’ “”46Fq rQ•– HITRAN I"—QRSTU. C 8. C 6 º 98 ». FGHMNd&RSTU`. º1¼.

(41) E 2.3 mm RSTUD Lµ¶p •–RSTU I%K ®^²"· ¤ ¸¹ORSTU IeK ®^²"{« ¹ORSTU 31.

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(44)   8   CO . !". #$%&'()*+,-./01 234 5 ) 9   67 CO  20, 30, 35, 40, 50 ppm, " # $ % ' (  20.18, 22.71, 25.53, 27.76 89:;<=*+, ->6?6 2.29 mm @ABCD9 E0 CO  35 ppm, " #$'( 25.53 <=FG*+,- ./8  HI 8

(45)    JKLMN:6 O P7 " QR0

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(47)  CO ) U5 ppm (30, 40 ppm) VW9X7 Y:6 " QR Z

(48) [0\M*+,-./9:; ]^8 _07 6 `ab.  9. CO  9 (1, 2, 3, 4) !" #$ '( 9 (5, 6, 7) 0 *+,-./ 9 Bn „) 0 JK¶6 ·¸ FG* +,- CO  35 ppm, " #$'( 25.53 8 ./ ¹n)\Mn8d . *+,- 

(49) ` c0d e0fg ") 2.3 mm hij klm0. n. 8. > CO H:;. o&p#qrs kltuv)&n 8. Ž~ 6K 7 yB CO ˆ*Q. wx yB z CO  9{|

(50) . B)n8n^ˆ‘’“”•8_ –—. 

(51) ) 10   }~7 2.29 mm CD. d. 9 CO €j‚ (2.32ῌ2.34 mm) ƒ@. 0fg™š\› œq0ž^8)M. AB  „)\M& 7 CO ‚† €. 8dn  ŸE7n ¡‚–¢".  23)‡:n CO ˆ* u‰ )Š&n. QR£¤ > 23¥ 8¦&.

(52) m 8[ n  :K0 CO . CO  x 9§cn<¨ . Z ˜W0. n

(53) “”•8_. 9:;<=*+,-

(54) _ ‹Œ.  10. 32. CO  yB‚© #ª‚ c0«¬­®7„ ¯KbM)\Mn °1± I„7²yB³¡ i ´µId  º». 2005 ¼ 1 ».

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(56). 4. ῌO2 . 4.1. . [C'- y) 2.3 mm LJ•– 1.3 mm 5/d—˜2345L`5/ ™6š?›œoL'y0 L-.  O2

(57) (IRA) (0,. yU]} 2.3 mm )7U]}7ž. 0)   Connes . 89Ÿ: ;  ¡]&¢£¤¥ <¦'. (1979)  . !"#$%. =/y›œ§¨©]mno'y0 *y OH . &'()*+*!,-./. ª

(58) U]}'=/L«$)7>ƒ. 11). 0. ›œ§¨©]mno'y0 ¬-y?­^¥. (1) 12 CO2  34. VU]} O2 IRA (0, 0) ®x. 56 7 O 89-:2;. 4[#?¯2d(*/ . <=>?0. d >@'„/ 0. 10). CO2@hn ῌ῍ CO@O (2) (1) AB / O 89- 

(59)  C D; E F 95 km GHIJ; <=>?0 O@O@M ῌ῍ O2῎@M KK!  L/  O2 IRA (0, 0) M- 56 N OP89:2'; QRB. ῌO2 IRA (0, 0)  Q ¨£o° 1.269 mm '±; ²/\]^-  A  R 5³ P ¨£o°-r/ 0 ῍1.277 mm, 1.305 mm G´-y?­^¥ £V¢µ]°œ]-r; 0 K¶ 4[#?¯2 wx  0 ῎L)7·N3•y B[C ¸• D 2-r/ 0. 5C STUVW-X!K  0  O2 Y; K* LIZ[ M\]^! _` a bc Cde f K!/K-"5C Kgh#i d?]j]k=]l]mno bpqB c - r ABsCtZC\]^u$s -:v/ wx/ 12)0 *yM z%{|/ &/}~&?]V '€/ K-"5C11) ( ) '*  ‚+ƒ-„ / - †K‡L,!ˆ‰-/!/0 K. K*LU]}. #i56 !Š.'(‹ŒŒd ! /'Žy**0- // 0 4.2.

(60) . 1‘’“y/'7”E 98 ». E1¼. ¹ 11. b3c OAO -y  1.3 mm  ?­^¥VTUV'=/yJ2?­^¥V0 bc TUVº2?­^¥V13)0 33.

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(65) ^‚.  HITRAN, HITEMP, !. ƒ  „ N } v ^    † ‡ U ^ ˆ ‰ EVan. "#$ VIRA1985, %&' (1976) (). Rhijn ˆ‰G KR^Š

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(67) ^H 

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(70) . . KRQ SF=>?L H . ‰u `N–

(71) \Q Ž\. $.KT  UVJ. —˜DN|}v^N™‡KR^Š. = ?WX  F 12, 13. v.

(72) . N 2.3 mm “67Kf . ^14)H ‘ ab 67\]^9. LU;Y Z[. š ‹›f 1,000 œ*=J. \]^_*`4 H ab 67\. U^ž‹›f. Mc*defgh

(73) ijkl m. Ÿ* ¡¢. mno EpqSoG r

(74) \Qst67u. Ÿ*WX^N£›KR^H  X‚. vwxLUM $.yz{Kf. ƒŸ*‘¤¥¦  #$. v. M . ‚ƒ. 67§š ‹›¨©ª. «OPl WX 67$e¬ -./0.12§­®N@v^;Y =iK‚ƒŸ*WX H F 14  ‚ƒŸ*`L N gh

(75) ijk (¯Ÿ*N°. iN±²¡³. ^. N©l^H ‘ ¦´v­®‘}U^ Xµ¶x·¸12¹5. F 12. O2 IRA (0, 0) ““c*`H gh

(76) i jkKc*N|}v^wxN’

(77) ^13)H. F 14 F 13 34. °Ÿ„. 1.277 mm \]^_*`H. ‚„\]^Ÿ*`H gh

(78) i jk°Ÿ„N’

(79) ^13)H º». 2005 ¼ 1 ».

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(81).  88 pixel    

(82)  1939 K   . 5.2.  . !"#$. ῌ%&'() *+,-.ῌ.  

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(84)  (175 K) . :;" |VZ *+@'@9[x'yH.

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(88)  5.1. `aK#. y~‡€ˆ_‰Š', ‹Qf;g^ j'~_`hŒ. ῌῌ. i,@'Ž~l\% T9: j . .  ~S]‘’“@'@7”k•–. ;9<. =!"#$%>&?$. 6%< =!"#$9—l‚ƒ„-H.  CO @'A.B $$ @'C. [@'an 9DmN qn9. (D. E),>&$*+FGH. o„-H  50 km pq 7. D,7I $ ?$ J-K. 9D „-H >&$}~. L$M./N)0O7 19:. X(€˜rM. spDK.  2P34<. =!56%7. ,1 >&$A†t™),š›uM..  /,"Q R=!S7" "#9. H9D4 : 8 -v@'.. @'8T,89. !"# :;" 2004. qli^œ_`@'"$J(l›c. < 4 U=>VW?7"@'@XY"ZA[. Fe† 9D48wI. \%>&$XY"]^&_`@'a.  ]‘’“@'@A8>& ].  CO bBCc. !"# $. xy Gzž —l‚ƒ„-H[. XY""#$ CO bdD! (115 GHz, 230.  Ÿ{9: 8 u>&. GHz) :1 e!% !Efg^hi'j. ]"|  —10/¡ ¢8b19:. kl.FGH" $I CO mN. zU),@' 9D8 £} K".

(89) fJF@'49: K"XY"9. ~)xy G9‰Š'7 Ÿ{,>. @'an KoL$fMoFKp >. &x¤€( ]@'2P7I €¥^(›. &qrC7FN* %dD*N ,. ZAT6%„-H@'¦€8YI.   stXY"9@'>&u

(90) .  §¨;^#£©ªy'. O6% q " $

(91) M. @' ‚4«9:1 :;"¬ƒ­„®¯‹Z. .A.BKpFN*PvwQ7 9D. † °s±²h³´µ(l.1 2004 < 4.  XY"ZA[\%R&]^&_`@. U῍7 U>&‡< ®¯‹Z †<. 'x'yHS8TIzU), :. ¶ˆ ‰\%-v@'2· Pv. 8 V,5GH W{)XY. HSYI. 15). D. !. =!. Ё^²{),¸V8"7 ] ‘’“@'@,¹Ž~l>&ºI. ‹ 98 ». ‹1¼. 35.

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(94) . ῎῍ῑῌ.  . !"#  $ %&!'(. )*+,-.,/01 +2

(95) 3!4 5 678$9:7  !;1 0$<=>?@A/01 72 17BC,?DEFGHI 2 %&!$BC,JKLMNOPQR '. ST,

(96) 67!$U. VWX!TY!D C8 S1. ! )*1$. UZ[\,T] -2 8 ^7, !$_`!DBC ,abc:7 fgh i. VX+ $d1e ,!jk7D. 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) 15). Allen D. A., Crawford J. W., 1984, Nature 307, 222 Sei# A., et al., 1985, AdSpR 5, 3 ’X&“2 ‹Œ2 2002, %µ3 3 µ¶2 126 Okumura S., et al., 2000, PASJ 52, 931 Bµ· 2 –¸†4¹+2 2004, *º•» 5  13 ¼ 1 ¶2 31 Sagawa H. et al., 2003, ISAS Research Note 765, 1 Collard A. D., et al., 1993, P&SS 41, 487 Toon O. B., et al., 1989, JGR 94, 16287 Pollack J. B., et al., 1993, Icarus 103, 1 Connes P., et al., 1979, ApJ 233, L29 Crisp D., et al., 1996, JGR 101, 4577 Allen D., et al., 1992, Nature 359, 516 Ohtsuki S., et al., 2005, in Press, Adv. Space Res. Crisp D., et al., 1991, Science 253, 1538 Jenkins J. M., et al., 2002, Icarus 158, 312. -2 lmVX n$\!BC,D ,:7.  8o. Sp$,1c:7+. ῐ. Infrared Imaging-spectroscopic Observations of Venus Atmosphere. ῏. qdrsW $"3t(0uvw Qx

(97) !^y# z{R|O}~\0 1S €‚$ƒ ‹Œ2 l‹. „ †‡ €ˆ‰S%Šƒ2 . Ž2 ‘Œ (ISAS/JAXA), ’X. &“ €'”B•ƒ2 –(—) €˜*B•ƒ2 $D ™š

(98) ™ €›œB•ƒ2  žŸ  €* IBMƒ ¡+%Š¢£>,- ¤y#.  !¥0$2 /0¦§¨$™(© Nª «1¬­21cCS. Sˆ‰S. %Š !;10$© Nª«1®B,¯ °

(99) }!^- `±(018!²^³´1S. 36. Shoko OHTSUKI and Hideo SAGAWA Graduate School of Science, University of Tokyo, 7ῌ3ῌ1 Hongo, Bunkyo-ku, Tokyo 113ῌ0033, Japan Munetaka UENO Graduate School of Arts and Sciences, University of Tokyo, 3ῌ8ῌ1 Komaba, Meguro-ku, Tokyo 153ῌ8902, Japan Abstract : We present a report on our recent observations of Venus atmosphere which we have performed in infrared wavelength at Okayama Astrophysical Observatory. The data show important results on the CO distribution and on O2 IRA (0, 0) 1.27 mm airglow in the atmosphere. The infrared windows of the Venusian atmosphere are rather developing areas and will give us important information on the dynamics of Venus atmosphere.. %µ3. 2005 6 1 µ.

(100)

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