Upper limit on HF(1-0) absorption in a dusty star-forming galaxy at $z=6$: Constraints on early fluorine enrichment

Akiyoshi Tsujita, Chiaki Kobayashi, Yuki Yoshimura +10

Wolf-Rayet (WR) stars have recently attracted attention as possible drivers of early chemical enrichment, including the production of fluorine, whose nucleosynthetic origin remains…