Fig. 12.
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Spectroscopic time-series from +7 d to +23.2 d of the Type Ic SN 2005aw. The spectra are plotted in velocity space with the segments of data containing the He Iλλ5876, 6678, and 7065 features plotted on top of each other. As revealed from the PCA results and consistent the data, SN 2005aw exhibits discernible features likely formed by He I with −vabs ∼ 8500 km s−1.
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