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Fig. 4

Atomic O lines for the second night of observation, December 2, 2007 (spectrum JODF0017). The units of the vertical axis are arbitrary. On the higher left and right panels: green line at 5577.339 Å. On the lower panels: red line at 6300.304 Å (left) and red line at 6363.776 Å (right).
This figure is made of several images, please see below:
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