Below we document sources in the literature from which we derive the values plotted in the graphical parameter histories. Each row in the table corresponds to a data reference source. An 'x' in a parameter column means data from that row's reference was included in the parameter's graphical history plot.
aBoomerang τ value is an upper limit prior.
bDerived from multiple data sources: WMAP+ACBAR+CBI+2dFGRS+Lyα
cDerived from multiple data sources: WMAP+eCMB+BAO+Ho
dDerived from multiple data sources: TT+TE+EE+lowP+lens+ext.
e Derived from multiple data sources: TT+TE+EE+lowE+lens+BAO
Contributed by the NASA / LAMBDA Archive Team.