Study predicts diverse compositions of interstellar objects based on their parent stars

A new study combines a chemical partition model with stellar elemental abundances to predict the compositions of interstellar objects (ISOs). The findings suggest that ISO compositions vary significantly depending on their parent stars, with a strong correlation between an ISO's ammonia abundance and its parent star's metallicity. This research offers insights into the origins of ISOs, such as 2I/Borisov and 3I/ATLAS.