The Spectrum and Transmission of Ammonia under Jovian Conditions

Abstract

The theory and data for calculating the positions, intensifies, and half-widths of the spectral lines of ammonia with frequencies <1400 cm?1 are described. The ground state rotation, ?2, 2?2? ?2, and the rotation-inversion bands of ?2 and 2?2 were included. The quantities necessary to fit a random-exponential band model are tabulated in 25 cm?1 intervals for temperatures from 100 to 225K at 25K intervals. Temperature and pressure corrections to the half-widths for application to the Jovian atmosphere are given. Consideration of the line shape suggests that opacity in the 200?700 cm?1, interval will be due to local lines, except possibly at very low temperatures and high pressures.