Figure 25: Left: Joint constraints on normal DGP from SNe Gold, CMB shift (WMAP3) and
data in the projected curvature- plane, after marginalizing over other parameters. The best-fits are
the solid points, corresponding to different values of . (From [167].) Right: Numerical solutions
for the normal DGP density and metric perturbations, showing also the quasistatic solution, which
is an increasingly poor approximation as the scale is increased. Compare with the self-accelerating
DGP case in Figure 23. (From [71].)
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