Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/23665
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Umiltà, C. | en_US |
dc.contributor.author | Ballardini, M. | en_US |
dc.contributor.author | FINELLI, FABIO | en_US |
dc.contributor.author | PAOLETTI, DANIELA | en_US |
dc.date.accessioned | 2020-03-28T13:59:04Z | - |
dc.date.available | 2020-03-28T13:59:04Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.issn | 1475-7516 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/23665 | - |
dc.description.abstract | We study the predictions for structure formation in an induced gravity dark energy model with a quartic potential. By developing a dedicated Einstein-Boltzmann code, we study self-consistently the dynamics of homogeneous cosmology and of linear perturbations without using any parametrization. By evolving linear perturbations with initial conditions in the radiation era, we accurately recover the quasi-static analytic approximation in the matter dominated era. We use PLANCK 2013 data and a compilation of baryonic acoustic oscillation (BAO) data to constrain the coupling γ to the Ricci curvature and the other cosmological parameters. By connecting the gravitational constant in the Einstein equation to the one measured in a Cavendish-like experiment, we find γ < 0.0012 at 95% CL with PLANCK 2013 and BAO data. This is the tightest cosmological constraint on γ and on the corresponding derived post-Newtonian parameters. Because of a degeneracy between γ and the Hubble constant H<SUB>0</SUB>, we show how larger values for γ are allowed, but not preferred at a significant statistical level, when local measurements of H<SUB>0</SUB> are combined in the analysis with PLANCK 2013 data. <P /> | en_US |
dc.language.iso | eng | en_US |
dc.title | CMB and BAO constraints for an induced gravity dark energy model with a quartic potential | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1088/1475-7516/2015/08/017 | en_US |
dc.identifier.scopus | 2-s2.0-84940869690 | en_US |
dc.identifier.isi | 000365046600017 | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.volume | 2015 | en_US |
dc.relation.issue | 8 | en_US |
dc.relation.firstpage | 017 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 4 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | FRA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2015JCAP...08..017U | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegherò il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0002-6694-3269 | - |
crisitem.author.orcid | 0000-0003-4761-6147 | - |
crisitem.journal.journalissn | 1475-7516 | - |
crisitem.journal.ance | E184073 | - |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
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File | Descrizione | Dimensioni | Formato | |
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1507.00718.pdf | postprint | 1.36 MB | Adobe PDF | Visualizza/apri |
P67_UmiltaetAl_CMBBAOConstraints_JCAP08_2015_017.pdf | [administrators only] | 1.21 MB | Adobe PDF |
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