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Fig. 9
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Normalized Shane/Kast optical spectrum of TOI-2015 (black lines) compared to three SDSS spectral templates from Bochanski et al. (2007, magenta lines). Characteristic spectral features of mid-type M dwarfs are labeled. The inset box shows the 6520–6770 Å region encompassing Hα (in emission) and Li I (not detected).
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