Using Local Group Galaxies to Investigate the Influence of Blending on Cepheid Distances and the Cosmological Distance Scale

B. J. Mochejska, L. M. Macri, D. D. Sasselov +1

We investigate the influence of blending on the Cepheid distance scale using two Local Group galaxies, M31 and M33. Blending leads to systematically low distances to galaxies obser…