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Fig. 2

Proposed [OII] 3727 emission line in the 2D spectrum of the host galaxy for GRB 130528A. The emission line lies at 8500 Å, implying a redshift 1.250. The 1D spectrum cannot be properly extracted due to its faintness. We determined the line flux using photometry, 48 ± 7.0 ×10-18 erg/s/cm2.
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