An unexplored enrichment stochasticity and its implications for stellar abundance patterns

Abstract Extremely low metallicity stars are intensely studied as they take observations the closest to the very first generations of stars in the universe. Widely assumed to be enriched by just one dying massive star, some of these very metal poor stars have abnormal chemical abundance ratios and have been taken to reflect a rare hypernova (with high explosion energy ≳ 1052 erg.). Here we remodel the enrichment of three such stars and show that their abundances are better explained by enrichmen