Quarkonia production in ultraperipheral PbPb collisions at LHCb

Two analyses are reported in this contribution. The cross-section of coherent $J/\psi$ and $\psi(2S)$ in ultra-peripheral PbPb collisions is measured as a function of rapidity $y^*$ and $p_{\mathrm{T}}^*$, where the asterisk indicates that the variables are defined in the nucleus-nucleus center-of-mass frame. The photo-produced $J/\psi$ yields in peripheral PbPb collisions is measured as a function of rapidity, transverse momentum, and the number of participating nucleons, <$N_{\mathrm{part}}$>. The results of the analyses are compared to theoretical predictions.