Astronomy & Astrophysics

Table 1: y-distortion: $\Delta T=T_{\rm ref}\cdot y$ in $\mu$ K for y as given in the left column in some of the PLANCK spectral channels. Here $y_{\rm d}=2.6\times 10^{-7}$ , $y_{\rm opt, 0}=3~{y_{\rm d}}$ and $y_{\rm opt}=12~{y_{\rm d}}$ .
Center of channels [GHz]

$\nu_{\rm c}$ 30 44 70 100 143 217 353

$y_{\rm d}$ 0.03 0.07 0.17 0.34 0.67 1.39 2.97

$y_{\rm opt, 0}$ 0.10 0.21 0.52 1.03 2.01 4.18 8.90

$y_{\rm opt}$ 0.39 0.83 2.07 4.13 8.05 16.71 35.56

**Table 1:** y-distortion: $\Delta T=T_{\rm ref}\cdot y$ in $\mu$ K for y as given in the left column in some of the PLANCK spectral channels. Here $y_{\rm d}=2.6\times 10^{-7}$ , $y_{\rm opt, 0}=3~{y_{\rm d}}$ and $y_{\rm opt}=12~{y_{\rm d}}$ .
	Center of channels [GHz]
$\nu_{\rm c}$	30	44	70	100	143	217	353
$y_{\rm d}$	0.03	0.07	0.17	0.34	0.67	1.39	2.97
$y_{\rm opt, 0}$	0.10	0.21	0.52	1.03	2.01	4.18	8.90
$y_{\rm opt}$	0.39	0.83	2.07	4.13	8.05	16.71	35.56

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