Figure 10: Limits from supernovae and large-scale structure data on and the equation-of-state
parameter , in a flat universe dominated by matter and dark energy. Thin contours (on the left)
represent limits from CMB and large-scale structure measurements, while thick contours are those
from SNe observations; solid lines apply to models with constant , while dashed lines apply to
models of dynamical scalar fields. The constraints are portrayed separately on the left, and combined
on the right. From [196].
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