Description
A new line list for AlH is produced. The WYLLoT line list spans two electronic states X^1^{SIGMA}^1^ and A^1^{PI}. A diabatic model is used to model the shallow potential energy curve of the A^1^{PI} state, which has a strong pre-dissociative character with only two bound vibrational states. Both potential energy curves are empirical and were obtained by fitting to experimentally derived energies of the X^1^{SIGMA}^1^ and A^1^{PI} electronic states using the diatomic nuclear motion codes Level and Duo. High temperature line lists plus partition functions and lifetimes for three isotopologues ^27^AlH, ^27^AlD and ^26^AlH were generated using ab initio dipole moments obtained with the MRCI/aug-cc-pV5Z level of theory. The line lists cover both the X-X and A-X systems and are made available in electronic form at the CDS and ExoMol databases.
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