Planck early results
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Table 6

Best fitting parameters for the observed M500 relation given in Eq. (8).

Ŷ500,M [10-3arcmin2]

0.896 ± 0.007stat [ ± 0.027tot]  1.783 (fixed) 2/3 (fixed)
Planck + MCXC 0.892 ± 0.008stat [ ± 0.025tot]  1.796 ± 0.014stat [ ± 0.042tot]  2/3 (fixed)
0.945 ± 0.012stat [ ± 0.049tot]  1.783 (fixed)  − 0.007 ± 0.154stat [ ± 0.518tot] 

X-ray prediction 0.850 1.783 2/3

Notes. Values are given for three different choices of priors and as predicted from X-rays for comparison. Both total errors from bootstrap resampling and statistical errors are quoted.

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