Planck 2015 results - XI. CMB power spectra, likelihoods, and robustness of parameters

Planck 2015 results

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Table A.2

Masked nearby galaxies and corresponding cut radii.

	Radius
Galaxy	[arcmin]

LMC ...............	250
SMC ...............	110
SMC ext^a ...............	50
M 31 F1^b ...............	80
M 31 F2 ...............	80
M 33 ...............	30
M 81 ...............	30
M 101 ...............	18
M 82 ...............	15
M 51 ...............	15
Cen A ...............	15

Notes.

^(a)

Inspection of the SMC at 857 GHz reveals an extra signal, localized in a small area near the border of the excised disk, which we mask with a disk centred at .

^(b)

M 31 is elongated. Therefore, instead of cutting an unnecessarily large disk, we use two smaller disks centred at the focal points of an elliptical fit to the galaxy image (F1, F2).

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