Image Details
Caption: Figure 11.
Autotyping reduced χ2 as a function of spectral type (left) and W2 magnitude (right). We included a floor of 10% on the minimum SPIFF error bars to compute this χ2 (as a guard against high-S/N outliers) and adjust a robust linear fit as a function of spectral type (red line in the left panel) to compensate for the systematic trend observed here. All objects with χ2 > 3 were flagged as potentially peculiar targets. See Section 4.4 for more details.
© 2026. The Author(s). Published by the American Astronomical Society.