Wiltshire, D.L.Smale, P.R, Mattsson, T.Watkins, R.Nazer, M.A.Bolejko, K.McKay, J.H.2015-04-132015-04-132014Wiltshire, D.L., Smale, P.R, Mattsson, T., Watkins, R., Nazer, M.A., Bolejko, K., McKay, J.H. (2014) Hubble expansion variance and the cosmic rest frame. Tallinn, Estonia: IAU Symposium 308: The Zeldovich Universe: Genesis and Growth of the Cosmic Web, 23-28 June 2014.http://hdl.handle.net/10092/10308Average homogeneity is only reached on scales greater than 70{100h1Mpc yet standard peculiar velocity approaches assume an most Euclidean geometry below this scale. Furthermore, the Friedmann equation is applied in the nonlinear regime, although this has no motivation in the fundamental principles of general relativity. We investigate the variance of the Hubble expansion in a manner which makes no prior geometrical assumptions, other than the existence of a suitably averaged linear Hubble law. We use the COMPOSITE data set of 4534 galaxies [Watkins, Feldman and Hudson (2009)].enHubble expansion variance and the cosmic rest frameConference Contributions - OtherFields of Research::51 - Physical sciences::5101 - Astronomical sciences::510103 - Cosmology and extragalactic astronomy