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Fig. 31
Comparison of early optical spectral line profiles (day 33, Hβ and Fe II 5018 Å) near maximum optical brightness with the day 617 STIS spectrum at N V 1238, 1242 Å absorption lines. As for Si IV, there was a component at –1300 km s-1 but there is no corresponding absorption at the higher velocity Si IV feature.
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