Left: low-resolution optical spectrum of RX J2314.9+2243, and the best-fit powerlaw continuum and Fe II complexes. Right: zoom onto the Hβ–[OIII] regime (moderate resolution). The dashed line shows our double-Gaussian fit to [OIII]4959,5007. The dotted lines represent the narrow and broad components of [OIII]5007. The flux density f_λ is given in units of 10^-17 erg s^-1 cm^-2 Å^-1. (A color version of this figure is available in the online journal.)