Planck 2015 results - I. Overview of products and scientific results

Planck 2015 results

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Table 4

Intercalibration factors by frequency between LFI, HFI, and WMAP.

		cmb Anisotropy [%]

	Solar dipole [%]	Commander	SMICA
Frequency [ghz] (Detector)	ℓ = 1	25 ≤ ℓ ≤ 100	50 ≤ ℓ ≤ 500

30 .............................................	...	–0.3^a± 0.1	...
44 ............................................	...	0.3^a± 0.1	...
70 ............................................	0.04^a	0.0^a± 0.1	0.21^a± 0.06
100 ............................................	0.03	0.09 ± 0.02	0.03 ± 0.02
143 ............................................	0^b	0; –0.1 ± 0.1 ^c	0^b
217 ............................................	0.20	0; 0.02 ± 0.03 ^c	0.28 ± 0.02
353 ............................................	0.53	0.5 ± 0.1	0.73 ± 0.11
545 ............................................	1.25	-1.0^d	1.09 ± 1.5
WMAP 23 (K) .........................	...	0^b	...
WMAP 33 (Ka) .......................	...	0.1 ± 0.1	...
WMAP 41 (Q) .........................	...	0.1 ± 0.1	...
WMAP 61 (V) .........................	...	0.2 ± 0.1	...
WMAP 94 (W) .........................	–0.26	0.2 ± 0.1	0.28 ± 0.15

Notes.

^(a)

LFI map rescaling factors that are incorporated in the beam transfer functions, as described in Planck Collaboration II (2016), have been applied.

^(b)

Reference frequency; no intercalibration calculated.

^(c)

For Commander at 143 GHz, detector set “ds1” was used as a reference (intercalibration factor = 0). The mean intercalibration factor for detectors ds2+5+6+7 was −0.1 ± 0.1. Similarly, at 217 GHz detector “1” was used as a reference (intercalibration factor = 0), and the mean intercalibration factor for detectors 2+3+4 was 0.02 ± 0.03. See table 6 in Planck Collaboration X (2016) for details.

^(d)

For Commander , the effective recalibration of the 545 GHz channel measured in units of μK_cmb is the product of a multiplicative calibration factor and a unit conversion correction due to revised bandpass estimation. See Sect. 5.3 in Planck Collaboration X (2016) for details.

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