Fe ii, Mg ii, and Mg i transitions detected in absorption in the 1D MUSE spectrum. Error bars show the 1σ error on the flux (black), and the green curve traces the fit to the absorption profiles. Zero velocity is relative to the galaxy systemic redshift, z = 1.2902. Vertical blue dashed lines mark the three components used to fit each absorption, and gray dashed lines show components that are part of neighboring transitions. The asymmetric absorption profiles indicate significant blue-shifted absorption.