dc.contributor.author | Ortiz Baños, María | |
dc.contributor.author | Bouhmadi López, Mariam ![ORCID](/themes/Mirage2//images/orcid_16x16.png) | |
dc.contributor.author | Lazcoz Sáez, Ruth ![ORCID](/themes/Mirage2//images/orcid_16x16.png) | |
dc.contributor.author | Salzano, Vincenzo | |
dc.date.accessioned | 2021-04-21T07:31:53Z | |
dc.date.available | 2021-04-21T07:31:53Z | |
dc.date.issued | 2021-03-17 | |
dc.identifier.citation | European Physical Journal C 81(3) : (2021) // Article ID 237 | es_ES |
dc.identifier.issn | 1434-6044 | |
dc.identifier.issn | 1434-6052 | |
dc.identifier.uri | http://hdl.handle.net/10810/51120 | |
dc.description.abstract | In this work, we further study a metric modified theory of gravity which contains a non-minimal coupling to matter, more precisely, we assume two functions of the scalar curvature, f1 and f2, where the first one generalises the Hilbert-Einstein action, while the second couples to the matter Lagrangian. On the one hand, assuming a Lambda CDM background, we calculate analytical solutions for the functions f1 and f2. We consider two setups: on the first one, we fix f2 and compute f1 and on the second one, we fix f1 and compute f2. Moreover, we do the analysis for two different energy density contents, a matter dominated universe and a general perfect fluid with a constant equation of state fuelling the universe expansion. On the other hand, we complete our study by performing a cosmographic analysis for f1 and f2. We conclude that the gravitational coupling to matter can drive the accelerated expansion of the universe | es_ES |
dc.description.sponsorship | M. B.-L., M. O. B. and R. L. were supported by the Spanish Ministry of Economy and Competitiveness through research projects No. FIS2017-85076-P (MINECO/AEI/FEDER, UE) and also by the Basque Government through research project No. GIC17/116-IT956-16. M.O.B. acknowledges financial support from the FPI grant BES-2015-071489. The work of M.B.L. is also supported by the Basque Foundation of Science IKERBASQUE. This article is based upon work from COST Action CA15117 (CANTATA), supported by COST (European Cooperation in Science and Technology) | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Springer | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/FIS2017-85076-P | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/BES-2015-071489 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | metric modified theory of gravity | es_ES |
dc.subject | Hilbert-Einstein | es_ES |
dc.subject | matter Lagrangian | es_ES |
dc.subject | Lambda CDM | es_ES |
dc.subject | cosmographic analysis | es_ES |
dc.subject | universe expansion | es_ES |
dc.subject | gravitational coupling to matter | es_ES |
dc.title | Lambda CDM Suitably Embedded in f(R) with a Non-Minimal Coupling to Matter | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0) | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://link-springer-com.ehu.idm.oclc.org/article/10.1140%2Fepjc%2Fs10052-021-09004-z | es_ES |
dc.identifier.doi | 10.1140/epjc/s10052-021-09004-z | |
dc.departamentoes | Física | es_ES |
dc.departamentoeu | Fisika | es_ES |