Fig. 1
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Observations of AD Leo (top panels) and of the inactive template LP 776-46 (middle panels). All spectra have been continuum-normalized consistently across epochs. The shaded yellow region marks the wavelength interval used for model fitting. Colored traces correspond to sequential observations, progressing from red to blue, with four exceptionally strong emission events in AD Leo highlighted in black. The bottom panels show the highest-SNR time-resolved spectra (SNR ∼98 for Hα and 150 for Ca II IRT) of the inactive template star LP 776-46, with overlaid Lorentzian profile fits (red curves).
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