Quantum mechanical calculations are performed of the emission and absorption profiles of the lithium 2s-2p resonance line under the influence of a helium perturbing gas. We use carefully constructed potential energy surfaces and transition dipole moments to compute the emission and absorption coefficients at temperatures from 2000.3em0exto0.3em0ex30000.3em0exK at wavelengths between 5000.3em0exnm and 10000.3em0exnm. Contributions from quasibound states are included. The resulting red and blue wing profiles are compared with previous theoretical calculations and with an experiment, carried out at a temperature of 6700.3em0exK.
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Zhu et al. (2005) studied this question.
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