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Planck 2015 results: XXI. The integrated Sachs-Wolfe effect

Ade, P. A. R.
•
Aghanim, N.
•
Arnaud, M.
altro
Zonca, A.
2016
  • journal article

Periodico
ASTRONOMY & ASTROPHYSICS
Abstract
This paper presents a study of the integrated Sachs-Wolfe (ISW) effect from the Planck 2015 temperature and polarization data release. This secondary cosmic microwave background (CMB) anisotropy caused by the large-scale time-evolving gravitational potential is probed from different perspectives. The CMB is cross-correlated with different large-scale structure (LSS) tracers: radio sources from the NVSS catalogue; galaxies from the optical SDSS and the infrared WISE surveys; and the Planck 2015 convergence lensing map. The joint cross-correlation of the CMB with the tracers yields a detection at 4Ï where most of the signal-to-noise is due to the Planck lensing and the NVSS radio catalogue. In fact, the ISW effect is detected from the Planck data only at â⠰ 3Ï (through the ISW-lensing bispectrum), which is similar to the detection level achieved by combining the cross-correlation signal coming from all the galaxy catalogues mentioned above. We study the ability of the ISW effect to place constraints on the dark-energy parameters; in particular, we show that ΩΠis detected at more than 3Ï . This cross-correlation analysis is performed only with the Planck temperature data, since the polarization scales available in the 2015 release do not permit significant improvement of the CMB-LSS cross-correlation detectability. Nevertheless, the Planck polarization data are used to study the anomalously large ISW signal previously reported through the aperture photometry on stacked CMB features at the locations of known superclusters and supervoids, which is in conflict with Î CDM expectations. We find that the current Planck polarization data do not exclude that this signal could be caused by the ISW effect. In addition, the stacking of the Planck lensing map on the locations of superstructures exhibits a positive cross-correlation with these large-scale structures. Finally, we have improved our previous reconstruction of the ISW temperature fluctuations by combining the information encoded in all the previously mentioned LSS tracers. In particular, we construct a map of the ISW secondary anisotropies and the corresponding uncertainties map, obtained from simulations. We also explore the reconstruction of the ISW anisotropies caused by the large-scale structure traced by the 2MASS Photometric Redshift Survey (2MPZ) by directly inverting the density field into the gravitational potential field.
DOI
10.1051/0004-6361/201525831
WOS
WOS:000385832200014
Archivio
http://hdl.handle.net/20.500.11767/68957
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84989237471
http://www.edpsciences.org/journal/index.cfm?edpsname=aa
https://arxiv.org/abs/1502.01595
Diritti
metadata only access
Soggetti
  • Cosmic background rad...

  • Cosmology: observatio...

  • Dark energy

  • Galaxies: clusters: g...

  • Large-scale structure...

  • Methods: data analysi...

  • Astronomy and Astroph...

  • Space and Planetary S...

  • Settore FIS/05 - Astr...

Scopus© citazioni
40
Data di acquisizione
Jun 2, 2022
Vedi dettagli
Web of Science© citazioni
110
Data di acquisizione
Mar 28, 2024
Visualizzazioni
1
Data di acquisizione
Jun 8, 2022
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