ISW-LSS cross-correlation in coupled Dark Energy models with massive neutrinos

Abstract

We provide an exhaustive analysis of the Integrated Sach-Wolfe effect (ISW) in the context of coupled Dark Energy cosmologies where a component of massive neutrinos is also present. We focus on the effects of both the coupling between Dark Matter and Dark Energy and of the neutrino mass on the cross-correlation between galaxy/quasar distributions and ISW effect. We provide a simple expression to appropriately rescale the galaxy bias when comparing different cosmologies. Theoretical predictions of the cross-correlation function are then compared with observational data. We find that, while it is not possible to distinguish among the models at low redshifts, discrepancies between coupled models and $\Lambda$CDM increase with $z$. In spite of this, current data alone seems not able to distinguish between coupled models and $\Lambda$CDM. However, we show that upcoming galaxy surveys will permit tomographic analysis which allow to better discriminate among the models. We discuss the effects on cross-correlation measurements of ignoring galaxy bias evolution, b(z), and magnification bias correction and provide fitting formulae for b(z) for the cosmologies considered. We compare three different tomographic schemes and investigate how the expected signal to noise ratio, snr, of the ISW-LSS cross-correlation changes when increasing the number of tomographic bins. The dependence of snr on the area of the survey and the survey shot noise is also discussed.

18 pages, 23 figures. Several major extensions. New sections and figures was added. ApJ in print

References in corpus (28)

• Dynamics of dark energy
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Power Spectra and WMAP-Derived Parameters
• Massive neutrinos and cosmology
• New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects
• Correlation of CMB with large-scale structure: I. ISW Tomography and Cosmological Implications
• Combined analysis of the integrated Sachs-Wolfe effect and cosmological implications
• The shape of the SDSS DR5 galaxy power spectrum
• A high redshift detection of the integrated Sachs-Wolfe effect
• Cosmological baryonic and matter densities from 600,000 SDSS Luminous Red Galaxies with photometric redshifts
• Matter density perturbations in interacting quintessence models
• Cross-correlation of WMAP 3rd year and the SDSS DR4 galaxy survey: new evidence for Dark Energy
• Constraining Dark Energy Anisotropic Stress
• Error analysis in cross-correlation of sky maps: application to the ISW detection
• Cross-correlation of 2MASS and WMAP3: Implications for the Integrated Sachs-Wolfe effect
• Anisotropic Magnification Distortion of the 3D Galaxy Correlation: I. Real Space
• A reassessment of the evidence of the Integrated Sachs-Wolfe effect through the WMAP-NVSS correlation
• Clarifying spherical collapse in coupled dark energy cosmologies
• Voids of dark energy
• Anisotropic Magnification Distortion of the 3D Galaxy Correlation: II. Fourier and Redshift Space
• Magnification-Temperature Correlation: the Dark Side of ISW Measurements
• Lensing Corrections to Features in the Angular Two-Point Correlation Function and Power Spectrum
• The Integrated Sachs-Wolfe Effect in Interacting Dark Energy Models
• Probing Dark Energy at Galactic and Cluster Scales
• Detectability of a phantom-like braneworld model with the integrated Sachs-Wolfe effect
• Using the cluster mass function from weak lensing to constrain neutrino masses
• An Improved Semi-Analytical Spherical Collapse Model for Non-linear Density Evolution
• Implications of bias evolution on measurements of the integrated Sachs-Wolfe effect: errors and biases in parameter estimation

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• Cosmology and Fundamental Physics with the Euclid Satellite
• Cosmology and fundamental physics with the Euclid satellite
• Dark Matter and Dark Energy Interactions: Theoretical Challenges, Cosmological Implications and Observational Signatures
• Testing modified gravity with Planck: the case of coupled dark energy
• Constraints on coupled dark energy using CMB data from WMAP and SPT
• Testing coupled dark energy with next-generation large-scale observations
• K-mouflage Cosmology: Formation of Large-Scale Structures
• The Jubilee ISW Project I: simulated ISW and weak lensing maps and initial power spectra results
• New Limits on Coupled Dark Energy from Planck
• The late Universe with non-linear interaction in the dark sector: the coincidence problem
• Measuring neutrino masses with joint JWST and DESI DR2 data
• The Integrated Sachs-Wolfe Effect in the Bulk Viscous Dark Energy Model