New \emph{ab initio} potential curves for the ground and low-lying excited states in NaCa$^+$ and LiBe$^+$ molecular ions

We report new accurate \emph{ab initio} calculations for the ground and low-lying excited states in NaCa$^+$ molecular ion and the lowest singlet and triplet states in LiBe$^+$. Preliminary results of the corrections due to the nuclear hyperfine interactions in the lowest singlet and triplet states for NaCa$^+$ are also reported. The \emph{ab initio} calculations were performed using valence multireference configuration interaction (MRCI) with complete active space self consistent field (CASSCF) orbitals.