Future CMB cosmological constraints in a dark coupled universe
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Future CMB cosmological constraints in a dark coupled universe

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Future CMB cosmological constraints in a dark coupled universe

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Martinelli, Matteo; López Honórez, Laura; Melchiorri, Alessandro; Mena Requejo, Olga
This document is a artículoDate2010

Este documento está disponible también en : http://hdl.handle.net/10550/37733
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.

    Martinelli, Matteo López Honórez, Laura Melchiorri, Alessandro Mena Requejo, Olga 2010 Future CMB cosmological constraints in a dark coupled universe Physical Review D 81 10 103534
http://dx.doi.org/10.1103/PhysRevD.81.103534

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