Bibcode
Planck Collaboration; Ade, P. A. R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, C.; Banday, A. J.; Barreiro, R. B.; Bartolo, N.; Basak, S.; Battaner, E.; Benabed, K.; Benoît, A.; Benoit-Lévy, A.; Bernard, J.-P.; Bersanelli, M.; Bielewicz, P.; Bock, J. J.; Bonaldi, A.; Bonavera, L.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Bucher, M.; Burigana, C.; Butler, R. C.; Calabrese, E.; Cardoso, J.-F.; Casaponsa, B.; Catalano, A.; Challinor, A.; Chamballu, A.; Chiang, H. C.; Christensen, P. R.; Church, S.; Clements, D. L.; Colombi, S.; Colombo, L. P. L.; Combet, C.; Couchot, F.; Coulais, A.; Crill, B. P.; Curto, A.; Cuttaia, F.; Danese, L.; Davies, R. D.; Davis, R. J.; de Bernardis, P.; de Rosa, A.; de Zotti, G.; Delabrouille, J.; Désert, F.-X.; Diego, J. M.; Dole, H.; Donzelli, S.; Doré, O.; Douspis, M.; Ducout, A.; Dupac, X.; Efstathiou, G.; Elsner, F.; Enßlin, T. A.; Eriksen, H. K.; Fergusson, J.; Fernandez-Cobos, R.; Finelli, F.; Forni, O.; Frailis, M.; Fraisse, A. A.; Franceschi, E.; Frejsel, A.; Galeotta, S.; Galli, S.; Ganga, K.; Génova-Santos, R. T.; Giard, M.; Giraud-Héraud, Y.; Gjerløw, E.; González-Nuevo, J.; Górski, K. M.; Gratton, S.; Gregorio, A.; Gruppuso, A.; Gudmundsson, J. E.; Hansen, F. K.; Hanson, D.; Harrison, D. L.; Henrot-Versillé, S.; Hernández-Monteagudo, C.; Herranz, D.; Hildebrandt, S. R.; Hivon, E.; Hobson, M.; Holmes, W. A.; Hornstrup, A.; Hovest, W.; Huffenberger, K. M.; Hurier, G.; Ilić, S. et al.
Bibliographical reference
Astronomy and Astrophysics, Volume 594, id.A21, 30 pp.
Advertised on:
9
2016
Journal
Citations
161
Refereed citations
145
Description
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 4σ 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 ≈3σ (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 ΩΛ is
detected at more than 3σ. 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 ΛCDM
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.