Fig. 2
Spectral evolution of OGLE-2014-SN-131. Four spectra were taken with the NTT and the VLT, all showing the prominent He i feature at 5876 Å. The zero flux level of each shifted spectrum is indicated with a dashed line. The line identifications from Sect. 4 are indicated with a red dashed line for He i, blue dot-dashed line for Hα, a green dotted line for Ca ii, and a gold dashed line for O i. The spectra have not been corrected for reddening due to extinction.
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