Absorption line profiles of the Na I D doublet and Ca II H&K in the three UVES spectra of SN 2013gh. The spectra are normalised and the Sep. 24.0 spectrum is binned for clarity in the Ca II H&K subplots. The solid vertical lines indicate the rest-frame wavelength of the host galaxy NGC 7183 (according to the spectroscopic redshift in Fisher et al. 1995). The dashed vertical line in the Ca II K subplot indicates the Milky Way rest-frame wavelength of Ca II H.
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