Planck early results
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Table 1

Characteristics of the data used in this study.

Data λref νref θ σII σabs
[μm] [ GHz] [arcmin] [MJy/sr] [%]

IRAS 100.0 2998 4.30 0.06 13.6
HFI 349.8 857 3.67 0.12 7%
HFI 550.1 545 3.80 0.12 7%
HFI 849.3 353 4.43 0.08 ≲2%
HFI 1381.5 217 4.68 0.08 ≲2%
HFI 2096.4 143 7.04 0.08 ≲2%
HFI 2997.9 100 9.37 0.07 ≲2%

Data line λref θ σ σabs
[μm] [arcmin] [K km s-1] [%]

LAB HI 21 cm 36.0 1.70 10.0
DHT 2.6 mm 8.8 1.20 24.0
Dame 2.6 mm 8.4 0.6 24.0
NANTEN 2.6 mm 2.6 1.20 10.0

Notes. λref and νref are the reference wavelength and frequencies of the photometric channels. θ is the beam FWHM. σII and σabs are the data variance and the absolute calibration uncertainty respectively.

Assumed to be for the averageIRAS coverage. σII computed by rescaling this value to actual coverage.

(♭)

1σ average value in one beam scaled from Planck HFI Core Team (2011b). We actually use internal variance maps for σII.

(♯)

1σ average value. We actually use a map of the uncertainties (see Sect.2.2.1).

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