Image Details
Caption: Figure 10.
Ratio of NH2 to CN production for solar system comets in comparison to the average of 2I/Borisov about perihelion (dashed line). Several other comets from the collections of U. Fink (2009), A. L. Cochran et al. (2012), and L. E. Langland-Shula & G. H. Smith (2011) have shown NH2 to CN ratios higher than 2I/Borisov; these are individually labeled. Note that the histogram bars per collection are stacked.
© 2026. The Author(s). Published by the American Astronomical Society.