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New experimental measurements of the H2-CO2 Collision-Induced Absorption in the [3907, 4770] cm^-1 spectral range from 241 to 498 K

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Zenodo2026-01-23 更新2026-05-26 收录
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Binary absorption coefficients (BACs) of the H2-CO2 Collision-Induced Absorption (CIA) are given in tabular form for six temperatures from 241 to 498 K in the [3907, 4780] cm^-1 spectral range. Tables are composed of three columns. The first column represents the wavenumber in cm^-1, in the second column the binary absorption coefficients in cm^5 molecule^-2 are collected, and the third column contains the accuracy of the binary coefficients in cm^5 molecule^-2. Every column is delimited with a comma. The accuracy can be supposed to be of three significant digits, even if the trailing zeros are not displayed. The a_coefficients.txt table contains the a_n coefficients (with the subscript n running from 1 to 4) obtained from the interpolation of the experimental BACs performed using with the exponential profile presented in Tran (2024) (https://doi.org/10.1016/j.icarus.2024.116265) and following the same procedure. Those coefficients are only wavenumber-dependent, and can be used in the exponential profile, shown below, to calculate the BACs at each desired temperature within the range investigated experimentally. K_CIA = k * exp{ a_1 + a_2*(T/T0) + a_3(T/T0)^2 + a_4(T/T0)^3 } where a_n are the coefficients obtained from the fit, T is the temperature, T0 is the reference temperature equal to 296 K and k is a constant equal to 1 cm^-1 amagat^-2.

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2026-01-23
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