Fig. 3
Spectrum of 2MASS J19420307+2317393 from ASPCAP (solid black) and Cannon (dashed line) data products. The associated synthetic stellar models are shown as dashed curves. We clearly see the difference between ASPCAP (blue) and Cannon (red) models around the 15 273 Å DIB location (black arrow). An offset was applied to ASPCAP data and model to facilitate the comparison.
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