Infrared transmission spectra of hot ammonia in the 4800–9000 cm−1 region

Abstract

Line lists of ammonia (NH3) are presented at elevated temperatures (293–900 K at 100 K intervals) for the 4800–9000 cm−1 region at pressures of 10 Torr and 100 Torr. This region includes a number of overtone, combination and related hot bands. The line lists were obtained by Fourier transform transmission spectroscopy and include calibrated line positions and intensities as well as estimates of empirical lower state energies by comparison of line intensities at different temperatures. These line lists are relevant to the study of the atmospheres of exoplanets and brown dwarfs.