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Table 4:

Temperature regimes for the onset of some physical processes relevant to comets, from Meech & Svoren (2005).
  T (K)  AU
$I_{\rm h}$ (crystalline water ice) sublimation 180 3.5-4
$I_{\rm a}$ (amorphous water ice) phase transition 90-160 11
$\rm CO_2$ sublimation 80 13
$\rm CO$ sublimation 25 120

Source LaTeX | All tables | In the text

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