DARK ENERGY DYNAMICAL DOMINATION IN LOCAL FLOWS OF GALAXIES

A.D. Chernin

Sternberg Astronomical Institute, Moscow University, 
Moscow, Russia 


We demonstrate that the general theory of relativity with  non-zero 
dark energy controls the dynamics of the Local Group of galaxies and 
the expansion flow of galaxies around the group at the distances of 
1-3 Mpc from us. The weak field approximation is valid on these spatial 
scales. In terms of classical mechanics, it enables to predict (Chernin 
2001, Byrd et al. 2012) that Newton's attraction force produced by matter 
(dark matter and baryons) dominates in the group, while Einstein's repulsion 
force produced by dark energy background (in which both group and flow are 
embedded) dominates in the flow. It is due to the dark energy domination 
that the flow has a nearly linear velocity-distance relation.  HST 
observations (Karachentsev et al. 2003, 2013) show that a dozen of groups 
with flows in the nearby volume of about 20 Mpc across reveal the same 
regular dynamical structure. Local dark energy domination is a new 
phenomenon of nature. In combination with the global cosmological expansion, 
it reveals the universal character of general relativity dynamics.  
    
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