Characterization of carbon dioxide on Ganymede and Europa supported by experiments: Effects of temperature, porosity, and mixing with water

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Volume 688 (August 2024)

A&A, 688 (2024) A155

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Table 2.

Band positions ( $\tilde{ν}$ $\tilde{\nu}$ ) for all three fitted Gaussians as a function of temperature.

	Pure CO₂			Low CO₂			High CO₂

T (K)	${\tilde{ν}}_{3, 1}$ $\tilde{\nu}_{3,1}$ (cm⁻¹)	${\tilde{ν}}_{3, 2}$ $\tilde{\nu}_{3,2}$ (cm⁻¹)	${\tilde{ν}}_{3, 3}$ $\tilde{\nu}_{3,3}$ (cm⁻¹)	${\tilde{ν}}_{3, 1}$ $\tilde{\nu}_{3,1}$ (cm⁻¹)	${\tilde{ν}}_{3, 2}$ $\tilde{\nu}_{3,2}$ (cm⁻¹)	${\tilde{ν}}_{3, 3}$ $\tilde{\nu}_{3,3}$ (cm⁻¹)	${\tilde{ν}}_{3, 1}$ $\tilde{\nu}_{3,1}$ (cm⁻¹)	${\tilde{ν}}_{3, 2}$ $\tilde{\nu}_{3,2}$ (cm⁻¹)	${\tilde{ν}}_{3, 3}$ $\tilde{\nu}_{3,3}$ (cm⁻¹)
10	2351.3	2345.0	–	2350.5	2345.0	2340.8	2353.5	2344.3	2337.3
30	2351.0	2344.8	–	2350.2	2344.8	2340.8	2353.7	2344.0	2337.0
50	2350.0	2344.3	–	2349.8	2344.5	2340.7	2353.8	2344.0	2337.1
70	2349.4	2344.2	–	2349.8	2344.2	2340.6	2353.7	2344.1	2337.2
80	2349.0	2344.0	–	2347.5	–	2340.7	2351.5	2344.1	2339.0
90	–	–	–	2347.0	–	2340.7	2348.0	–	2339.7
100	–	–	–	2347.0	–	2340.8	2348.3	–	2340.0
110	–	–	–	2347.0	–	2340.7	2347.8	–	2339.9
130	–	–	–	2346.9	–	2340.8	2347.8	–	2339.8
140	–	–	–	2347.0	–	2340.8	2347.8	–	2339.9
150	–	–	–	2346.8	–	2340.7	2349.0	–	2340.3
160	–	–	–	2348.0	–	2340.6	2349.3	–	2340.5
170	–	–	–	2348.0	–	–	2349.1	–	–

Notes. This is done for a pure CO₂ ice, a low CO₂ concentration and a high CO₂ concentration.

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