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Fig. 5


Calculated [OI] red-doublet (6300+6364 Å) and 5577 Å line brightness profiles (with solid curves) along the cometocentric projected distances on comet C/2006 W3 (Christensen) with H2O production rate of 2 × 1028 s-1 and 42% CO2 and 98% CO relative abundances with respect to H2O in the cometary coma when the comet was at 3.13 au from the Sun. The calculated G/R ratio profiles considering CO, without considering CO, and without quenching are plotted with dashed, dotted, and dash-dotted curves, respectively, on the right y-axis.

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