Search results with tag "Distance scale"

1 arXiv:2112.04510v1 [astro-ph.CO] 8 Dec 2021

distance ladder of Cepheids and SNe Ia using the then recently-installed ACS (and later WFC3) instruments, following successful e orts during the 1990s by the \ rst-generation" HST Key Project on the Extragalactic Distance Scale (Freedman et al.2001) and the SNe Ia Luminosity Calibration Program (Sandage et al.2006), both of which primarily

  Scale, Distance, Distance scale