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Fig. 2

image

Balmer and forbidden emission lines from the host galaxy of GRB 130925A. In each figure, the top and middle panels show the X-Shooter 2D and 1D spectra zoomed into the wavelength range of the line labelled in the top right corner of the middle panel. The bottom panel shows the residuals from our two-component fits to the 1D spectrum. In the middle panel, we also show the best-fit Gaussians for each individual component (dashed grey lines) and composite model (red solid line).

This figure is made of several images, please see below:

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