Local dark energy: HST evidence from the vicinity of the M 81/M 82 galaxy group

Details Local dark energy: HST evidence from the vicinity of the M 81/M 82 galaxy group Local dark energy: HST evidence from the vicinity of the M 81/M 82 galaxy group

2007-06-28

arxiv.org/abs/0706.4171v1

Astrophys.50:405-415,2007

Astronomy and Astrophysics

Astrophysics

17 pages, 1 figure

Scientific paper

10.1007/s10511-007-0038-2

The Hubble Space Telescope observations of the nearby galaxy group M 81/M 82 and its vicinity indicate that the expansion outflow around the group is dominated by the antigravity of the dark energy background. The local density of dark energy in the area is estimated to be near the global dark energy density or perhaps exactly equal to it. This conclusion agrees with our previous results for the Local group vicinity and the vicinity of the Cen A/M 83 group.

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