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Fig. 7

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Measured wavelength of the Ni sky-line at 5197.9 Å as a function of fiber number. The thin, grey lines connect measurements from 10 spectra in individual science exposures. Crosses show the averages of these measurements, and the thick, black lines indicate the standard deviation from the mean. The dash-dotted line depicts the tabulated value of Ni in air, as given by NIST.

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