Linking ephemeris-derived outgassing forces to surface activity on comet Churyumov/Gerasimenko 67P: A comparative analysis of three post-Rosetta ephemerides

Open Access

Fig. 3

Magnitude of the extracted NGA for comet 67 P as a function of time from perihelion. Results are shown for the three reconstructed ephemerides: K & L (2019), Farnocchia et al. (2021), and Bologna (2024). The dashed curve represents the sublimation law g(r′), shifted by 23 days to align with the summer solstice. The shaded regions indicate the active window defined by $| a_{NG}^{eff} | \geq 0.1 A_{max}$ $Mathematical equation: $\[\left|a_{\text {NG}}^{\text {eff}}\right| \geq 0.1 A_{\text {max}}\]$$ .

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