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Searching for a dipole modulation in the large-scale structure of the Universe
R. Fernández-Cobos, P. Vielva, D. Pietrobon +3
Several statistical anomalies in the CMB temperature anisotropies seem to defy the assumption of a homogeneous and isotropic universe. In particular, a dipole modulation has been d…
Quadrant asymmetry in the angular distribution of the Cosmic Microwave Background in the Planck satellite data
Larissa Santos, Paolo Cabella, Thyrso Villela +3
Some peculiar features found in the angular distribution of the cosmic microwave background (CMB) measured by the Wilkinson Microwave Anisotropy Probe (WMAP) deserve further invest…
Neutrinos and dark energy constraints from future galaxy surveys and CMB lensing information
Larissa Santos, Paolo Cabella, Amedeo Balbi +1
We explore the possibility of obtaining better constraints from future astronomical data by means of the Fisher information matrix formalism. In particular, we consider how cosmic…
Planck intermediate results. XIII. Constraints on peculiar velocities
Planck Collaboration, P. A. R. Ade, N. Aghanim +182
Using \Planck\ data combined with the Meta Catalogue of X-ray detected Clusters of galaxies (MCXC), we address the study of peculiar motions by searching for evidence of the kineti…
Planck Intermediate Results. XI: The gas content of dark matter halos: the Sunyaev-Zeldovich-stellar mass relation for locally brightest galaxies
Planck Collaboration, P. A. R. Ade, N. Aghanim +194
We present the scaling relation between Sunyaev-Zeldovich (SZ) signal and stellar mass for almost 260,000 locally brightest galaxies (LBGs) selected from the Sloan Digital Sky Surv…
Planck intermediate results. VIII. Filaments between interacting clusters
Planck Collaboration, P. A. R. Ade, N. Aghanim +208
About half of the baryons of the Universe are expected to be in the form of filaments of hot and low density intergalactic medium. Most of these baryons remain undetected even by t…
Planck intermediate results. X. Physics of the hot gas in the Coma cluster
Planck Collaboration, P. A. R. Ade, N. Aghanim +207
We present an analysis of Planck satellite data on the Coma Cluster observed via the Sunyaev-Zeldovich effect. Planck is able, for the first time, to detect SZ emission up to r ~ 3…
Planck Intermediate Results. V. Pressure profiles of galaxy clusters from the Sunyaev-Zeldovich effect
Planck Collaboration, P. A. R. Ade, N. Aghanim +214
Taking advantage of the all-sky coverage and broad frequency range of the Planck satellite, we study the Sunyaev-Zeldovich (SZ) and pressure profiles of 62 nearby massive clusters…
Forecasting isocurvature models with CMB lensing information: axion and curvaton scenarios
Larissa Santos, Paolo Cabella, Amedeo Balbi +1
Some inflationary models predict the existence of isocurvature primordial fluctuations, in addition to the well known adiabatic perturbation. Such mixed models are not yet ruled ou…
Planck Intermediate Results II: Comparison of Sunyaev-Zeldovich measurements from Planck and from the Arcminute Microkelvin Imager for 11 galaxy clusters
Planck, AMI Collaborations, : +195
A comparison is presented of Sunyaev-Zeldovich measurements for 11 galaxy clusters as obtained by Planck and by the ground-based interferometer, the Arcminute Microkelvin Imager. A…
Planck Intermediate Results. IV. The XMM-Newton validation programme for new Planck galaxy clusters
Planck Collaboration, P. A. R. Ade, N. Aghanim +191
We present the final results from the XMM-Newton validation follow-up of new Planck galaxy cluster candidates. We observed 15 new candidates, detected with signal-to-noise ratios b…
Planck intermediate results. III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal
Planck Collaboration, P. A. R. Ade, N. Aghanim +183
We examine the relation between the galaxy cluster mass M and Sunyaev-Zeldovich (SZ) effect signal D_A^2 Y for a sample of 19 objects for which weak lensing (WL) mass measurements…
Planck Intermediate Results. I. Further validation of new Planck clusters with XMM-Newton
The Planck Collaboration, N. Aghanim, M. Arnaud +182
We present further results from the ongoing XMM-Newton validation follow-up of Planck cluster candidates, detailing X-ray observations of eleven candidates detected at a signal-to-…
Planck Early Results XXVI: Detection with Planck and confirmation by XMM-Newton of PLCK G266.6-27.3, an exceptionally X-ray luminous and massive galaxy cluster at z~1
Planck Collaboration, N. Aghanim, M. Arnaud +189
We present first results on PLCK G266.6-27.3, a galaxy cluster candidate detected at a signal-to-noise ratio of 5 in the Planck All Sky survey. An XMM-Newton validation observation…
Planck Early Results: Origin of the submm excess dust emission in the Magellanic Clouds
Planck Collaboration, P. A. R. Ade, N. Aghanim +197
The integrated Spectral Energy Distributions of the Large and Small Magellanic Cloud appear significantly flatter than expected from dust models based on their FIR and radio emissi…
Planck early results: Cluster Sunyaev-Zeldovich optical scaling relations
Planck Collaboration, N. Aghanim, M. Arnaud +202
We present the Sunyaev-Zeldovich (SZ) signal-to-richness scaling relation (Y500-N200) for the MaxBCG cluster catalogue. Employing a multi-frequency matched filter on the Planck sky…
Planck Early Results XI: Calibration of the local galaxy cluster Sunyaev-Zeldovich scaling relations
Planck Collaboration, P. A. R. Ade, N. Aghanim +207
We present precise Sunyaev-Zeldovich (SZ) effect measurements in the direction of 62 nearby galaxy clusters (z <0.5) detected at high signal-to-noise in the first Planck all-sky da…
Planck early results. IX. XMM-Newton follow-up for validation of Planck cluster candidates
Planck Collaboration, N. Aghanim, M. Arnaud +197
We present the XMM-Newton follow-up for confirmation of Planck cluster candidates. Twenty-five candidates have been observed to date using snapshot (~10 ksec) exposures, ten as par…
Planck Early Results VIII: The all-sky Early Sunyaev-Zeldovich cluster sample
Planck Collaboration, P. A. R. Ade, N. Aghanim +235
We present the first all-sky sample of galaxy clusters detected blindly by the Planck satellite through the Sunyaev-Zeldovich (SZ) effect from its six highest frequencies. This ear…
Real-time Cosmology
Claudia Quercellini, Luca Amendola, Amedeo Balbi +2
In recent years the possibility of measuring the temporal change of radial and transverse position of sources in the sky in real time have become conceivable thanks to the thorough…
Needatool: A Needlet Analysis Tool for Cosmological Data Processing
Davide Pietrobon, Amedeo Balbi, Paolo Cabella +1
We introduce NeedATool (Needlet Analysis Tool), a software for data analysis based on needlets, a wavelet rendition which is powerful for the analysis of fields defined on a sphere…
Planck pre-launch status: the Planck-LFI programme
N. Mandolesi, M. Bersanelli, R. C. Butler +140
This paper provides an overview of the Low Frequency Instrument (LFI) programme within the ESA Planck mission. The LFI instrument has been developed to produce high precision maps…
Foreground influence on primordial non-Gaussianity estimates: needlet analysis of WMAP 5-year data
P. Cabella, D. Pietrobon, M. Veneziani +5
We constrain the amplitude of primordial non-Gaussianity in the CMB data taking into account the presence of foreground residuals in the maps. We generalise the needlet bispectrum…
Needlet Bispectrum Asymmetries in the WMAP 5-year Data
Davide Pietrobon, Paolo Cabella, Amedeo Balbi +3
We apply the needlet formalism to the Wilkinson Microwave Anisotropy Probe 5-year data, looking for evidence of non-Gaussianity in the bispectrum of the needlet amplitudes. We conf…