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Fig. 7.


Electron density distribution in the V5668 Sgr ejecta for day 186 based on the optical [O III] profiles. The 4363 Å is plotted without removing the Hγ contribution for visualization purposes. The Hβ line was used to model Hγ, see text for discussion. Notice that, like the nitrogen ratios, the derived ne is the same for the two lobes of the ejecta despite the profile asymmetries.

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