A new line list for AlH is produced. The WYLLoT line list spans two electronic states X 1 Σ + and A 1 Π. A diabatic model is used to model the shallow potential energy curve of the A 1 Π 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 Σ + and A 1 Π 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. 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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