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likelihood grids

## Likelihood grids for a set of cosmological models

The following tables provide tabulate likelihood function for a set of
cosmological models with dark energy equation of state:

- Flat Universe, constant equation of state: (5.4M)
- Flat Universe, evolving equation of state [w=w0+wa*(1-a)]: (58M)
- Non-flat Universe, constant equation of state: (55M)

Format of all these files is identical:OmegaM OmegaDE w0 wa sigma8 h chi2

Likelihood function is specified as effective chi2, chi2 = -2*ln(L) +
const, where const is adjusted so that for the best-fit model it
characterizes goodness of fit (see section 7 in Paper II).
Likelihood tables are truncated to the region chi2<100 to save
space. You can also download complete tables: flat-w0 (9.5M), flat-w0-wa (102M),
nonflat-w0 (104M).

Note that while *h* and *sigma8* grids are uniform, those
for OmegaM, OmegaDE, and equation of states may not be. To obtain a
set of grid points, run something like

awk '{print $1}' chi2.grid.OmegaM-w.restricted | sort -n | uniq

($1 for OmegaM, $2 for OmegaDE, $3 for w0, $4 for wa grids, respectively).

See also CosmoMC fortran 90 module to interpolate in these grids.