Fig. 5
Experimental constraints on the Galileon parameters
and
from WMAP7+H0 data (top panel) and from BAO+H0 data (bottom
panel). The four-dimensional likelihood
has been marginalized
over 
and 
.
The filled dark, medium, and light-green contours enclose 68.3, 95.4, and 99.7% of
the probability, respectively. Dark dotted regions correspond to scenarios rejected
by theoretical constraints. A Gaussian prior on
based on the
WMAP7 value has been added to the BAO+H0 fit.
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