Line emission in shocks and PDR - Observatoire de Paris
Line emission in shocks and PDR - Observatoire de Paris
Line emission in shocks and PDR - Observatoire de Paris
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CO <strong>and</strong> H2O: The ISO-LWS view<br />
LVG (Giann<strong>in</strong>i et al. 2001):<br />
Warm gas (200-2000 K)<br />
Dense (3x10 4 -10 7 cm-3)<br />
Compact (ff ~ 1% : typical<br />
size 10’’)<br />
L(CO + H2O) ~ outflow Lk<strong>in</strong><br />
Shocked gas ?<br />
X(H2O)/X(CO)<br />
3<br />
1<br />
0.3<br />
0.1<br />
C-shock mo<strong>de</strong>ls (Tgas<br />
= Tmax)<br />
X(H2O)/X(CO) <strong>in</strong>creases with<br />
temperature: mantle<br />
<strong>de</strong>sorption <strong>and</strong> O to H 2<br />
O<br />
conversion.<br />
Dusty04 - <strong>Paris</strong>, October 2004
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