Keck/HIRES Sky Line Atlas

Tables of observed OH lines, and calculated wavelengths for molecular oxygen (O2) are given; the journal of the observations is found in the "Tables 1" section below, and spectra with identified lines are provided as postscript figures, which are summarized in the "figs.dat" file. Introduction (from Paper 1): The data are long exposure spectra taken with the Keck 10-meter telescope high-resolution echelle spectrograph.

The current CCD's are not large enough to cover the whole spectrum in a single exposure but by using two settings of the echelle, "left" (L) and "right" (R), it is possible to do so, with an overlap in the middle. The night-sky spectrum was subtracted from each exposure, and these pairs of exposures were combined to get maximum spectral coverage. The resulting night-sky spectrum extends from 385.6 nm (in order 92) to 1199 nm (in order 30).