Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/26051
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Ballardini, M. | en_US |
dc.contributor.author | FINELLI, FABIO | en_US |
dc.contributor.author | Umiltà, C. | en_US |
dc.contributor.author | PAOLETTI, DANIELA | en_US |
dc.date.accessioned | 2020-06-15T09:40:15Z | - |
dc.date.available | 2020-06-15T09:40:15Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 1475-7516 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26051 | - |
dc.description.abstract | We study induced gravity dark energy models coupled with a simple monomial potential propto σ^n and a positive exponent n. These simple potentials lead to viable dark energy models with a weak dependence on the exponent, which characterizes the accelerated expansion in the asymptotic attractor, when ordinary matter becomes negligible. We use recent cosmological data to constrain the coupling γ to the Ricci curvature, under the assumptions that the scalar field starts at rest deep in the radiation era and that the gravitational constant in the Einstein equations is compatible with the one measured in a Cavendish-like experiment. By using Planck 2015 data only, we obtain the 95 % CL bound γ < 0.0017 for n=4, which is further tightened to γ < 0.00075 by adding Baryonic Acoustic Oscillations (BAO) data. This latter bound improves by ~ 30 % the limit obtained with the Planck 2013 data and the same compilation of BAO data. We discuss the dependence of the γ and ̇ dot G_N/G_N (z=0) on n. | en_US |
dc.language.iso | eng | en_US |
dc.title | Cosmological constraints on induced gravity dark energy models | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1088/1475-7516/2016/05/067 | en_US |
dc.identifier.scopus | 2-s2.0-85012298946 | en_US |
dc.identifier.isi | 000378041500068 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.1088/1475-7516/2016/05/067 | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.volume | 2016 | en_US |
dc.relation.issue | 5 | en_US |
dc.relation.article | 067 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | 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 | 2016JCAP...05..067B | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare 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 |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
JCAP1601.03387.pdf | postprint | 2.56 MB | Adobe PDF | Visualizza/apri |
BFUP.pdf | [Administrators only] | 4.73 MB | Adobe PDF |
Page view(s)
52
controllato il 27-apr-2024
Download(s)
13
controllato il 27-apr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.