Image Details
Caption: Figure 20.
Continuum-subtracted and continuum-normalized spectra (same procedure as for the spectra in Figure 16) of LkCa 15, RY Tau, GM Aur, and IRAS 04370+2559, which are the T Tauri stars with the most pristine (i.e., sub-μm, amorphous silicate) grains.
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