Abstract
ABSTRACT SH0ES VI-band photometry for classical Cepheids in the keystone galaxy NGC4258 yield discrepant absolute magnitudes. Specifically, the 2016 and 2022 published SH0ES Cepheid data for NGC4258 exhibit a substantial offset of ΔW0, VI ≃ 0m.3. That adds to a suite of existing concerns associated with the SH0ES analysis, which in sum imply that their relatively non-changing Hubble constant for nearly 20 years warrants scrutiny.
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