Carbon dioxide clathrate hydrate FTIR spectrum - Near infrared combination modes for astrophysical remote detection

E. Dartois; B. Schmitt

doi:10.1051/0004-6361/200911812

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Volume 504 / No 3 (September IV 2009)

A&A, 504 3 (2009) 869-873

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Table 1:

Carbon dioxide: gas, pure solid, hydrate, and clathrate hydrate transitions.
$\begin{displaymath}\begin{tabular}{l l l l l l} \hline\hline & Gas $\rm ^{e}$ & ... ...ge\{}&5066.2 \\ & & & & &\it {5075.3} \\ \hline \end{tabular}\end{displaymath}$ $\rm ^{a}$ Mid-infrared : pure CO₂ spectrum measured at 4 K in April 1996 with the same spectrometer; Near-infrared spectra at 21 K and assignments from Quirico & Schmitt (1997); $^{\rm b}$ from Bernstein et al. (2005); $^{\rm c}$ position accuracy is estimated to better than 0.5 cm^-1, line positions in italics have higher uncertainties due to line blending, weakness, or saturation effects; $\rm ^{d}$ clathrate antisymmetric stretching-mode assignments for the $\rm\nu_3(^{12}CO_2)$ based on Fleyfel & Devlin (1991); $^{\rm e}$ transitions are assigned based on Rothman (1986).

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