Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 466, Issue 1, Pages 286-319Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stw3112
Keywords
galaxies: star formation; cosmology: observations; large-scale structure of Universe; infrared: diffuse background
Categories
Funding
- ESA Member States
- 'Programme National de Cosmologie and Galaxies'(PNCG) of CNRS/INSU, France
- OCEVU Labex [ANR-11-LABX-0060]
- AMIDEX-Investissements d'Avenir' French [ANR-11IDEX-0001-02]
- NASA and Canada
- Science and Technology Facilities Council [ST/N000927/1] Funding Source: researchfish
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We present new measurements of the power spectra of the cosmic infrared background (CIB) anisotropies using the Planck 2015 full-mission High frequency instrument data at 353, 545 and 857 GHz over 20 000 deg(2). We use techniques similar to those applied for the cosmological analysis of Planck, subtracting dust emission at the power spectrum level. Our analysis gives stable solutions for the CIB power spectra with increasing sky coverage up to about 50 per cent of the sky. These spectra agree well with H I-cleaned spectra from Planck measured on much smaller areas of sky with low Galactic dust emission. At 545 and 857 GHz, our CIB spectra agree well with those measured from Herschel data. We find that the CIB spectra at l greater than or similar to 500 are well fitted by a power-law model for the clustered CIB, with a shallow index gamma(cib) = 0.53 +/- 0.02. This is consistent with the CIB results at 217 GHz from the cosmological parameter analysis of Planck. We show that a linear combination of the 545 and 857 GHz Planck maps is dominated by the CIB fluctuations at multipoles l greater than or similar to 300.
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