SIMBAD references

Zehavi et al. have suggested that the Hubble flow within 70 h^–1 Mpc may be accelerated by the existence of a void centered on the Local Group. Its underdensity would be ∼20%, which would result in a local Hubble distortion of about 6.5%. We have combined the peculiar velocity data of two samples of clusters of galaxies, SCI and SCII, to investigate the amplitude of Hubble distortions to 200 h^–1 Mpc. Our results are not supportive of that conclusion. The amplitude of a possible distortion in the Hubble flow within 70 h^–1 Mpc in the SCI+SCII merged data is 0.010±0.022. The largest, and still quite marginal, geocentric deviation from smooth Hubble flow consistent with that data set is a shell with ΔH₀/H₀=0.027±0.023, centered at hd=101 Mpc and extending over some 30 h^–1 Mpc. Our results are thus consistent with a Hubble flow that, on distances in excess of ∼50 h^–1 Mpc, is remarkably smooth.