Still non-accelerating: age-bias correction in supernova cosmology is robust to host-progenitor age mapping

Chul Chung, Junhyuk Son, Seunghyun Park +4

We re-examine the claim by Wiseman et al. (2026) that progenitor-age bias has a negligible impact on cosmological inferences from Type Ia supernovae (SNe Ia). We show that their in…