Accurate and complete rotational, rotational-vibrational and rotational-vibrational-electronic line lists are calculated for sodium hydride: both the NaH and NaD isotopologues are considered. These line lists cover all ro-vibrational states of the ground (X~1Σ+) and first excited (A~1Σ+) electronic states. The calculations use available spectroscopically-determined potential energy curves and new high-quality, \textit{ab initio} dipole moment curves. Partition functions for both isotopologues are calculated and the effect of quasibound states is considered. The resulting line lists are suitable for temperatures up to about 7000~K and are designed for studies of exoplanet atmospheres, brown dwarfs and cool stars. In particular, the NaH A−X band is found to show a broad absorption feature at about 385 nm which should provide a signature for the molecule. All partition functions, lines and transitions are available as Supplementary Information to this article and at \url{www.exomol.com}.
@article{arxiv.1506.00174,
title = {ExoMol molecular line lists X: The spectrum of sodium hydride},
author = {Tom Rivlin and Lorenzo Lodi and Sergei N. Yurchenko and Jonathan Tennyson and Robert J. Le Roy},
journal= {arXiv preprint arXiv:1506.00174},
year = {2015}
}