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Fig. 5.
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Evolution of Hα, and OI 8446 Å emission lines. The Hα line profile has been corrected for telluric absorbptions. No correction was applied to OI 8446 Å line because telluric absorptions ends redward 8377 Å. The drop in intensity between 8555 and 8575 Å is artificial and represents an inter-order gap in the Echelle spectra.
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