6533b870fe1ef96bd12cfb69
RESEARCH PRODUCT
Future CMB cosmological constraints in a dark coupled universe
Alessandro MelchiorriMatteo MartinelliLaura Lopez-honorezOlga Menasubject
AstrofísicaAstrophysics and AstronomyNuclear and High Energy PhysicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Cold dark matterDark matterScalar field dark matterFOS: Physical sciencesLambda-CDM modelGeneral Relativity and Quantum Cosmology (gr-qc)Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics01 natural sciencesGeneral Relativity and Quantum CosmologyThermodynamics of the universeHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciences010303 astronomy & astrophysicsPhysics010308 nuclear & particles physicsHot dark matterAstronomyHigh Energy Physics - PhenomenologyDark energyDark fluidAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
Cosmic microwave background satellite missions as the ongoing 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-04-14 | Physical Review D |