Image Details
Caption: Figure 9.
Example of the spectra in which the templates are unable to differentiate the Ca H&K features at high significance. The data are represented in black, the flux errors on each pixel in red, and the template in blue. A boxcar smoothing kernel of width 11 pixels has been applied to the data for illustrative effect. Left: the template corresponding to the visual inspection redshift is fit to the data with a χ2 per degree of freedom of 0.911 at a redshift z = 0.61516. Right: an incorrect template is fit to the data with χ2 per degree of freedom of 0.915 at z = 0.62806, a difference from the first template small enough to trigger the ZWARNING_NOQSO flag.
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