Planck 2018 results
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Table A.1.

Overview of spectral and spatial priors adopted in the Commander analysis.

Component Prior
 CMB........ TCMB = 2.755K
 Low-frequency component........ βlf = −3.1 ± 0.5
θlf = 30′ FWHM
 Thermal dust emission........ βd = 1.55 ± 0.1
Td = (19.5 ± 3) K
Cosine apodization,
5000 ≤  ≤ 6000
 CO emission........ Spatially uniform line ratios
θCO = 15′ FWHM
 Radio source component........ acs ≥ 0
 CMB........ TCMB = 2.755 K
 Synchrotron emission........ βs spatially uniform
As = 102 μK2
θs = 40′ FWHM
 Thermal dust emission........ βd = 1.6 ± 0.1
Td, pol = Td, int
θd = 10′ FWHM

Notes. Parameters denoted A and θ correspond to the spatial angular power spectrum prior, as defined in Eq. (A.10), where A is defined relative to the reference frequency of the component in question in units of .

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