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Author
Di Valentino, E.
;
Melchiorri, A.
;
Mena, O.
;
Pan, S.
;
Yang, W.Q.
Title
Interacting dark energy in a closed universe
Type
Journal Article
Year
2021
Publication
Monthly Notices of the Royal Astronomical Society
Abbreviated Journal
Mon. Not. Roy. Astron. Soc.
Volume
502
Issue
1
Pages
L23-L28
Keywords
Abstract
Recent measurements of the Cosmic Microwave Anisotropies power spectra measured by the Planck satellite show a preference for a closed universe at more than 99 per cent confidence level (CL). Such a scenario is however in disagreement with several low redshift observables, including luminosity distances of Type Ia supernovae. Here we show that interacting dark energy (IDE) models can ease the discrepancies between Planck and supernovae Ia data in a closed Universe, leading to a preference for both a coupling and a curvature different from zero above the 99 per cent CL. Therefore IDE cosmologies remain as very appealing scenarios, as they can provide the solution to a number of observational tensions in different fiducial cosmologies. The results presented here strongly favour broader analyses of cosmological data, and suggest that relaxing the usual flatness and vacuum energy assumptions can lead to a much better agreement among theory and observations.
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ISSN
0035-8711
ISBN
Medium
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Notes
WOS:000662142100005
Approved
no
Is ISI
yes
International Collaboration
yes
Call Number
IFIC @ pastor @
Serial
4879
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