Future CMB cosmological constraints in a dark coupled universe

Abstract

Cosmic Microwave Background satellite missions as the on-going Planck experiment are expected to provide the strongest constraints on a wide set of cosmological parameters. Those constraints, however, could be weakened when the assumption of a cosmological constant as the dark energy component is removed. Here we show that it will indeed be the case when there exists a coupling among the dark energy and the dark matter fluids. In particular, the expected errors on key parameters as the cold dark matter density and the angular diameter distance at decoupling are significantly larger when a dark coupling is introduced. We show that it will be the case also for future satellite missions as EPIC, unless CMB lensing extraction is performed.

6 pages, 6 figures

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Cited by in corpus (44)

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• Revisiting a negative cosmological constant from low-redshift data
• Testing the Interaction between Dark Energy and Dark Matter with Planck Data
• New constraints on Coupled Dark Energy from Planck
• Testing the interaction between dark energy and dark matter via latest observations
• Coupled dark matter-dark energy in light of near Universe observations
• Testing modified gravity with Planck: the case of coupled dark energy
• Listening to the sound of dark sector interactions with gravitational wave standard sirens
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• Testing coupled dark energy with next-generation large-scale observations
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• Interacting Dark Energy: Possible Explanation for 21-cm Absorption at Cosmic Dawn
• Cosmological direct detection of dark energy: non-linear structure formation signatures of dark energy scattering with visible matter
• Probing the imprint of interacting dark energy on very large scales
• Distinguishing interacting dark energy from wCDM with CMB, lensing, and baryon acoustic oscillation data
• Search for sterile neutrinos in a universe of vacuum energy interacting with cold dark matter
• Constraining interacting dark energy with CMB and BAO future surveys
• The effect of Dark Matter and Dark Energy interactions on the peculiar velocity field and the kinetic Sunyaev-Zel'dovich effect
• Future weak lensing constraints in a dark coupled universe
• Quantifying the impacts of future gravitational-wave data on constraining interacting dark energy
• A Model for Dark Energy decay
• Models of vacuum energy interacting with cold dark matter: Constraints and comparison
• Breaking parameter degeneracy in interacting dark energy models from observations
• Tickling the CMB damping tail: scrutinizing the tension between the ACT and SPT experiments
• Deep connection between f(R) gravity and the interacting dark sector model
• Effective dark energy equation of state in interacting dark energy models
• The signature of the scattering between dark sectors in large scale cosmic microwave background anisotropies
• Scalar perturbations in cosmological models with dark energy - dark matter interaction
• Biases on cosmological parameters by general relativity effects
• Forecast Analysis on Interacting Dark Energy Models from Future Generation PICO and DESI Missions
• A gauge-invariant approach to interactions in the dark sector
• Interacting phantom dark energy: new accelerating scaling attractors
• Revisiting the Instability Problem of Interacting Dark Energy Model in the Parametrized Post-Friedmann Framework
• Reconstruction of the interaction term between dark matter and dark energy using SNe Ia
• Reconstruction of the interaction term between dark matter and dark energy using SNe Ia, BAO, CMB, H(z) and X-ray gas mass fraction
• Signature of the interaction between dark sectors in the reionization process
• New tests of dark sector interactions from the full-shape galaxy power spectrum