Line Identifications in the Spectrum of η Carinae as Observed in 1990–1991 with CCD Detectors

We have used the Cerro Tololo Inter‐American Observatory telescopes and spectrographs to record emission lines in η Carinae from 3093 to 8956 Å with a gap between 4432 and 5696 Å. A resolving power of about 20,000 was used throughout. Accurate wavelengths, peak intensities relative to the local continuum, and line identifications are presented. The data are briefly discussed with respect to the state of ionization present, the presence of oxygen lines, and the use of [S ii ] lines to derive a lower limit on the local electron density. We also tabulate the wavelengths of interstellar absorption lines and diffuse interstellar bands.