Fig. 9
Results from the simplified coma model for a water-dominated coma and high outgassing rate. Unlike the low outgassing case in Fig. 8, the H3O+/H2O+ ratio is significantly greater than 1, indicating stronger ion-neutral chemistry for this high outgassing case. Even though there is stronger ion-neutral chemistry, the HCO+/CO+ ratio is only slightly greater than 1.
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