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Table 1 The change in determination of the parameters of the tensor background for three different choices of cosmological data sets.

From: Stochastic backgrounds of relic gravitons: a theoretical appraisal

Data

r T

n s

α S

ΩΛ

ΩM0

keqMpc

WMAP5 alone

< 0.58

-0.050 ± 0.034

0.00993

WMAP5 + Acbar

< 0.54

-0.048 ± 0.027

0.01004

WMAP5 + LSS + SN

< 0.54

0.01008

WMAP5 + CMB data

< 0.64

0.01013