Fig. 4.

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Multi-component Hα line profile fits at 32.7 d, 38.5 d, 74.5 d, and 121.3 d. The strong red component is described by a Lorentzian profile, but for the other components a Gaussian profile provides a decent fit. The fits are shown with solid red lines and each of the individual components with dashed red lines. Spectra binned to 5 Å are shown in a darker shade and unbinned spectra in a lighter one. For the first three epochs, the fits were performed on the shown data, but for the last epoch only data redwards of rest frame Hα were used due to the highly asymmetric line profile.
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