Correlated k coefficients for H2-He atmospheres; 196 spectral windows and 1060 pressure-temperature points

There are 72 correlated k-coefficients datasets, using the naming convention m-xxx_coyyy.data.196.tar.zip, where xxx is the metallicity in dex relative to solar, and yyy is the C/O ratio relative to solar, as a multiplication factor. For example a metallicity of 0.0 and a C/O ratio of 1.0 indicates solar abundances. We use the Lodders et al. 2010 value for the solar C/O=0.458. The spectral windows are listed in the file 196_windows.txt (intervals defined as starting at lambda1 and ending at lambda2), and the k-coefficients can be read in and checked using the script in the IDL code read_k_coefficients.pro. The k-coefficients are calculated for a grid of 1060 pressure-temperature points listed in the file PT_list_1060. The correlated-k coefficients are calculated using pre-mixed opacities, where the abundances for each metallicity-C/O combination have been calculated using equilibrium chemistry, as described in Marley et al. 2021. There are 12 Fe/H values: 0.0, 0.5, 0.7, 1.0, 1.5, 1.5, 1.7, 2.0, -0.25, -0.3, -0.5, -0.75, and -1.0; and 6 C/O values: 0.25, 0.5, 1.0, 1.5, 2.0 and 2.5. The opacity sources included in the calculations are: C2H2, C2H4, C2H6, CH4, CO, CO2, CrH, FeH, H2O, H2S, HCN, LiCl, MgH, N2, NH3, OCS, PH3, SiO, TiO, and VO, in addition to alkali metals (Li, Na, K, Rb, Cs). The references for the line lists and broadening parameters used in these opacity calculations can also be found in Marley et al 2021, and are included here for convenience in the file Table_2_Marley_et.al.2021.png Each dataset contains the following files: ascii_data: the correlated k coefficients file in ascii format. This can be read by the included IDL code. binary_data: the correlated k coefficients file in binary format cp_all: contains the mean molecular weight for each layer. The head capacity values do not include the proper H2 heat capacity and should not be used. full_abunds: the relative abundances for all the species from the chemistry files, on the 1060-point pressure-temperature grid. sum_in_atoms: relative abundances for the alkali metals sum_in_cia: relative abundances for the species that could be used for calculating collision-induced absorption (CIA) sum_in_layer: relative abundances for all molecules included in the correlated k-coefficients calculations本数据集共计72组关联k系数（correlated k-coefficients）数据集，命名遵循m-xxx_coyyy.data.196.tar.zip格式，其中xxx为以dex为单位的相对于太阳的金属丰度，yyy为以倍率表示的相对于太阳的碳氧比（C/O ratio）。例如金属丰度为0.0且碳氧比为1.0时，代表元素丰度与太阳一致。本数据集采用Lodders等人2010年公布的太阳碳氧比0.458作为基准值。 光谱窗口列表存储于文件196_windows.txt中（区间定义为从λ1至λ2），关联k系数可通过IDL代码read_k_coefficients.pro中的脚本读取并校验。 关联k系数基于文件PT_list_1060中列出的1060个压强-温度点网格计算得到。本数据集的关联k系数采用预混合不透明度进行计算，每种金属丰度-碳氧比组合的元素丰度通过平衡化学方法求得，具体细节参见Marley等人2021年的研究。 本次数据集包含12个铁氢比（Fe/H）取值：0.0、0.5、0.7、1.0、1.5、1.5、1.7、2.0、-0.25、-0.3、-0.5、-0.75及-1.0；同时包含6个碳氧比取值：0.25、0.5、1.0、1.5、2.0及2.5。 计算中使用的不透明度来源包括：C2H2、C2H4、C2H6、CH4、CO、CO2、CrH、FeH、H2O、H2S、HCN、LiCl、MgH、N2、NH3、OCS、PH3、SiO、TiO及VO，此外还涵盖碱金属（Li、Na、K、Rb、Cs）。本不透明度计算所用的线表及展宽参数的参考文献同样可参见Marley等人2021年的研究，为方便使用，相关内容已以图片文件Table_2_Marley_et.al.2021.png的形式随数据集一并提供。 每个数据集均包含以下文件： 1. ascii_data：ASCII格式的关联k系数文件，可通过随附的IDL代码读取； 2. binary_data：二进制格式的关联k系数文件； 3. cp_all：包含各层的平均分子质量。注意：此处的热容值未包含恰当的氢气热容，请勿使用； 4. full_abunds：基于1060个压强-温度点网格的化学文件中所有物种的相对丰度； 5. sum_in_atoms：碱金属的相对丰度； 6. sum_in_cia：可用于计算碰撞诱导吸收（collision-induced absorption, CIA）的物种的相对丰度； 7. sum_in_layer：关联k系数计算中包含的所有分子的相对丰度。