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- Baker and Partridge (1986)$B$O(B Noachian $B$K7A@.$5$l$?%P%l!<$N(B
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- $B$I$A$i$b(B Noachian $B$H$=$l0J8e$N;~Be$H$N4V$G?/?)B.EY$,JQ2=(B
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$B8+@Q$b$i$l$F$$$k(B.
$B$7$+$7(B, HO $B$N@dBPC&%,%9NL$O$o$+$i$J$$(B.
- Scambos and Jakosky (1990):
SNC $Bp(@P$+$i?dDj$5$l$?A4(B K $BNL(B(235-300ppm)$B$H2a5n$N%^%0%^$NJ.=PNL$N(B
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$BJ|Ar $B$O(B 0.012-0.040, $BHsJ|
- Jakosky et al. (1994):
$BBg5$>eAX$G$N(B Supttering $B$K$h$k(B Ar $B$N;60o8z2L$r9MN8$7$F(B,
$BC&%,%9N($r7W;;$7$?(B.
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$B4QB,$+$i!V2P@1$N?eAG$O=E$$!W$3$H$,$o$+$C$F$$$k(B.
- Owen et al. (1988): Bjoraker et al. (1989):
$B!V2P@1Bg5$$N?eAG$O=E$$!W$3$H$rH/8+$7$?(B.
$BCO5e>e$+$i$N@V30@~J,8w4QB,$+$i(B, $B2P@1$N(B D/H
$B$rF@$?(B.
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$B$h$C$FBg5$$+$i(B H $B$,A*BrE*$K;60o$7$?$3$H$,<(:6$5$l$k(B.
- Watson at al. (1994):
$B!V2P@1CO3L$N?eAG$b=E$$!W$3$H$rH/8+$7$?(B.
SNC $Bp(@PCf$N%^%0%^[email protected]/8;4^?e9[J*$NJ,@O$+$i(B,
$B2P@1CO3L$N(B D/H $B$OCO5e$N?e$HF1DxEY$NCM$+$i(B, $B2P@1Bg5$$HF1DxEY$NCM$N4V$K(B
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$B$3$N7k2L$+$i(B HO $BNL$,8+@Q$b$i$l$F$$$k(B.
- Yung et al. (1988):
$B3H;6J,N%$H8w2=3X2aDx$K$h$k8=:_$N(B H, D $B$N;60oN((B, $BJ,JL0x;R(B3$B$r?dDj$7$?(B.
$BF@$i$l$?CM$O;60oN($,(B H:
, D:
($BC10L$O(B
atoms cmsec), $BJ,JL0x;R$,(B 0.32 $B$G$"$k(B.
$B$3$N;60oN($,(B 45 $B2/G/;}B3$7$?$H$9$k$H(B, $B4QB,$5$l$k(B D/H $BHf$^$GJ,JL$,?J$`$?$a$K$O(B
$B=i4|$N2P@1$K$OA45e$G?<$5(B 3.6m $BAjEv$NBg5$$H8r492DG=$J(B HO $B$,B8:_$7(B,
$B8=:_$^$G$K(B 0.2m $BAjEv$^$G8:>/$9$l$P$h$$$3$H$K$J$k(B.
- Jakosky (1990):
$B<+E><4$N79$-$,Bg$-$J;~4|$K$OBg5$Cf$N?e>x5$G;EY$OA}2C$9$k$N$G(B, $B$h$j(B
$BB?NL$N;60o$,5/$3$k$O$:$@(B, $B$H$7$F=i4|$N(B HO $BNL$r8+@Q$b$C$?(B.
$B$=$7$F=i4|$KA45e$G?<$5(B 70m $BAjEv$N(B HO $B$,B8:_$7(B, $B8=:_$^$G$K(B 4m
$BAjEv$^$G8:>/$9$l$P$h$$$H$7$?(B.
$B$3$l$O(B Yung et al.(1988) $B$N?dDjCM$N(B 20 $BG\$G$"$k(B.
- Donahue (1995):
13 $B2/G/A0$K$G$-$?$H?dDj$5$l$kp(@PCf$N(B D/H $BHf$H8=:_$NBg5$Cf$NCM$,$[$H$s$I(B
$BJQ$o$i$J$$$3$H$+$i(B, $BI=AX$N(B HO $BNL$r?dDj$7$?(B.
$B;60o$N%Q%i%a!<%?$O(B Yung et al.(1988) $B$NCM$rMQ$$$?(B.
$B$3$l$h$j(B 13 $B2/G/A0$K$OA45e$G?<$5(B 25m $BAjEv$N8r492DG=$J(B HO, 45 $B2/G/A0$K$O(B
280m $BAjEv$N(B HO $B$,B8:_$9$k$H$7$?(B.
$B$3$l$i$O:GDcNL$G$"$j(B, $B$b$C$HB?$/B8:_$7$F$$$F$b$+$^$o$J$$(B.
H $B$N;60o$,$I$N$h$&$J?J2=$r$?$I$C$?$+$K$O(B, $BO"B3E*$K;60o$7$?$H$9$k9M$((B
($B@F0lO@(B: Jakosky and Jone, 1995)$B$H(B, $B2a5n$N29CH$J;~Be$K<>=a$JBg5$$+$iB?$/(B
$B;60o$5$l(B, $BJ,JL$NBgItJ,$O$=$N$H$-?J9T$7$?$H$9$k9M$((B($B=i4|Bg5,LO;60o(B
: Owen wt al., 1988)$B$,$"$k(B.
$B@F0lO@$K$O(B, 1)$B8=:_$N4(Nd$J4D6-$G$OBg5$$HCO3LCf$N(B HO $B$N8r49$O(B
$B?J9T$7$K$/$$(B, 2)$B;DB8(B HO (Jakosky, 1990)$BNL$,>/$J$9$.$k(B, $B$H$$$&(B
$BLdBj$,$"$k(B.
$B2P@1$O=ENO$,CO5e$HHf$Y>.$5$/Bg5$$bGv$$$?$a(B, $BBg5$$NMM!9$J;60o2aDx$,(B
$BBg5$$HI=AX4D6-$N?J2=$K=EMW$JLr3d$r2L$?$9(B.
- Hydrodynamic escape
- $BBg5$>eAX$N(B H $B$,(B EUV($B1s;g30@~(B)$B$K2CG.$5$l(B, $BG.E*$KN.=P$9$k(B.
$B$3$N$H$-N.B+$,==J,Bg$-$$$H(B, $BB>$N=E$$J,;R$d86;R$r$R$-$:$C$F;60o$9$k(B.
Pepin (1991) $B$O(B Xe $B$NJ,JL$r$3$N8z2L$G@bL@$7$F$$$k(B.
$B$3$N$H$-I,MW$J(B EUV $B%U%i%C%/%9$O8=:_$N(B
$BG\(B.
$BB@M[
- Impact erosion
- $B>.E7BN$N9bB.EY>WFM$G@8$8$?9b29$N>x5$N.$K(B, $BBg5$$,@\$O5/$3$i$J$$$,(B, $B6E7k$N8z2L$r9M$($k$HI=AXA4BN$G4xH/@-(B
$B85AG$NJ,JL$,5/$3$jF@$k(B.
Melosh and Vikery (1989) $B$OI,MW$J>WFMB.EY$H$7$F(B, $B>WFMBN$,4d@P
- Jeans escape
- Maxwell $BB.EYJ,I[[email protected],$,;60o$9$k(B.
H, D, He $B$^$GM-8z$KF/$/(B.
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$BH?1G$7$F$$$k(B.
- Dissociation recombination
- $BJ,;R%$%*%s$,EE;R$H:F7k9g$7$F(B, $B9bB.$NCf@-86;R$X2rN%$7$F;60o$9$k(B.
$BNc$($P(B Ne
2N, Oe
2O $B$J$I(B.
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$BH?1~<+BN$O8w2=3X2aDx$N0l$D(B.
- Ion pick-up Sputtering
- $B%$%*%s$,B@M[Iw<'>l$K4,$-IU$$$F2CB.$5$l$k(B(Ion pick-up).
$B$=$N$^$^;60o$9$k$3$H$b$"$k$,(B, $B4,$-IU$-1?F0$N7k2L305$7w$K:F>WFM$7(B,
$B<~0O$NN3;R$K1?F0NL$rEO$7$F;60o$5$;$k(B(Sputtering)$B$3$H$b$"$k(B.
$BB@M[IwN3;R(B(p), He $B%$%*%s$ND>@\(B Sputtering $B$O8z2L$,Gv$$(B.
$B2P@1$O<'>l$,
Luhmann et al. (1992) $B$O:G6a(B 35 $B2/G/$N(B Sputtering $B$K$h$k;60oNL$r8+@Q$b$C$?(B.
$B$=$l$K$h$k$H(B C $B$O(B 120mb $BAjEv(B, O $B$O(B HO $B$K49;;$7$FA45e$r?<$5(B 30m $B$G(B
$BJ$$&NL$,;60o$7$F$$$k(B.
$B$^$?(B Jakosky et al. (1995) $B$G$O(B Ar/Ar, Ne/
Ne $B$NJ,JL$O(B Sputtering $B$@$1$G==J,@bL@$G$-$k$H$7$F$$$k(B.
$B$`$7$mJ,JL$,8zN(NI$/?J$_$9$.$k$N$G(B, $BFbIt$+$i$NO"B3C&%,%9$K$h$k4u
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$B
$BK\9F$O(B 1989 $BG/$+$i(B 1993 $BG/$KEl5~Bg3XCO5eOG@1J*M}3X2J$G9T$o$l$F$$$?(B,
$BN.BNM}O@%;%_%J!<$G$N%;%_%J!<%N!<%H$,$b$H$K$J$C$F$$$k(B.
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