H2-H2_ramirez2014sp.dat --> H2-H2 continuum taken from Ramirez et al. 2014 supplementary materials.
CO2-H2_ramirez2014sp.dat --> H2-CO2 continuum taken from Ramirez et al. 2014 supplementary materials. This continuum is based on HITRAN H2-air database.
CO2-CH4_wordsworth2017.dat --> CO2-CH4 CIA continuum calculated in Wordsworth et al. 2017.
CO2-H2_wordsworth2017.dat --> CO2-H2 CIA continuum calculated in Wordsworth et al. 2017.

H2-H2_eq_2018.cia --> H2-H2 (equilibrium ; ortho/para ratio typically < 3:1 ; this is more suitable at low temperatures, 
e.g. for cold gas giant applicationss) CIA taken from HITRAN website, 0-2400cm-1, 40 to 400K
Same for H2-H2_eq_2011.cia, but older version
