Planck 2015 results
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Table 7

Posterior mean and rms values for spatially constant parameters in the temperature model.

Detectors
Quantity or Band Value

Synchrotron freq scale factor, α ........................ ... 0.26b
Spinning dust secondary peak freq, ......... ... 33.35 GHzb
CO J = 1  0 line ratio ........................ 100-ds1 1a
100-ds2 1.02 ± 0.01
CO J = 2  1 line ratio ........................ 217-1 1a
217-2 1.07 ± 0.01
217-3 1.15 ± 0.01
217-4 1.18 ± 0.01
CO J = 3  2 line ratio ........................ 353-ds2 1a
353-1 1.3 ± 0.1
94/100 GHz line ratio ........................ 100-ds1 1a
100-ds2 1.4 ± 0.3
W1 4.6 ± 3.2
W2 4.2 ± 2.9
W3 5.3 ± 3.7
W4 4.3 ± 3.0

Notes. The uncertainties of the synchrotron frequency scaling factor and the secondary spinning dust peak frequency are strongly dominated by modelling errors that are difficult to quantify properly, and are omitted here; see main text for further discussion. The quoted line ratios refer to amplitudes relative to the respective reference band.

(a)

Reference channel.

(b)

Only the maximum-likelihood value is provided; see main text.

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