A SPECTROSCOPIC LINELIST FOR HOT-WATER

A new linelist of H2O transition frequencies and intensities is presen ted. This list greatly improves the accuracy of the energy levels and the transition frequencies over existing hot water linelists. Although it does not cover many high vibrational states of the molecule, it do es include all the rotational levels up to J=38. Comparisons with seve ral sets of data (ab initio and experimental) are shown. The accuracy of the linelist should be enough for it to be used to assign laborator y line transitions at high temperature, and to provide water transitio ns that could be observed in other hot molecular environments includin g magnetohydrodynamic shocks, circumstellar outflows and active galact ic nuclei.