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Full-Text Articles in Physical Sciences and Mathematics
Hot Methane Line Lists For Exoplanet And Brown Dwarf Atmospheres, Robert J. Hargreaves, Christopher A. Beale, Laurent Michaux, Melis Irfan, Peter F. Bernath
Hot Methane Line Lists For Exoplanet And Brown Dwarf Atmospheres, Robert J. Hargreaves, Christopher A. Beale, Laurent Michaux, Melis Irfan, Peter F. Bernath
Chemistry & Biochemistry Faculty Publications
We present comprehensive experimental line lists of methane (CH4) at high temperatures obtained by recording Fourier transform infrared emission spectra. Calibrated line lists are presented for the temperatures 300-1400°C at twelve 100°C intervals spanning the 960-5000 cm-1 (2.0-10.4 μm) region of the infrared. This range encompasses the dyad, pentad, and octad regions, i.e., all fundamental vibrational modes along with a number of combination, overtone and hot bands. Using our CH4 spectra, we have estimated empirical lower state energies (Elow in cm-1) and our values have been incorporated into the line lists along …