On the quiescence of the Hubble flow in the vicinity of the Local Group A study using galaxies with distances from the Cepheid PL-relation

Abstract

Cepheid distances of local galaxies (< 7 Mpc) are used to study the very nearby velocity field, as pioneered by Sandage (1986) who also pointed out its remarkable properties: linearity and quietness. The new data show that the velocity dispersion in the distance range as seen from the barycentre of the Local Group 1 − 8 Mpc is as low as 38 km s−1. The local… (More)

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