Image Details
Caption: Figure 7.
Example of the influence on classification by non-physical flux at extrema of spectrum. 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 1.017 at a redshift z = 0.80831. Right: an incorrect template is fit to the data with ﹩{\chi }^{2}﹩ per degree of freedom of 1.022 at z = 1.09220, a difference from the first template small enough to trigger the ZWARNING_NOQSO flag.
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