In the framework of scalar-tensor gravity, we consider non-flat interacting quintessence cosmology where a scalar field is interacting with dark matter. Such a scalar field can be a standard or a phantom one. We use the Noether Symmetry Approach to obtain general exact solutions for cosmological equations and to select scalar-field self-interaction potentials. It turns out that the found solutions can reproduce the accelerated expansion of the Universe, and are compatible with observational dataset, as the SNeIa Pantheon data, gamma ray bursts Hubble diagram, and direct measurements of the Hubble parameter.

Interacting quintessence cosmology from Noether symmetries: Comparing theoretical predictions with observational data

Stefano Vignolo;
2023-01-01

Abstract

In the framework of scalar-tensor gravity, we consider non-flat interacting quintessence cosmology where a scalar field is interacting with dark matter. Such a scalar field can be a standard or a phantom one. We use the Noether Symmetry Approach to obtain general exact solutions for cosmological equations and to select scalar-field self-interaction potentials. It turns out that the found solutions can reproduce the accelerated expansion of the Universe, and are compatible with observational dataset, as the SNeIa Pantheon data, gamma ray bursts Hubble diagram, and direct measurements of the Hubble parameter.
File in questo prodotto:
File Dimensione Formato  
On_Noether_symmetries_in_interacting_quintessential_cosmological_models__comparison_of_theoretical_predictions_with_observational_data (1).pdf

accesso aperto

Descrizione: versione definitiva articolo
Tipologia: Documento in Pre-print
Dimensione 770.61 kB
Formato Adobe PDF
770.61 kB Adobe PDF Visualizza/Apri
1-s2.0-S2212686423001085-main.pdf

accesso aperto

Tipologia: Documento in versione editoriale
Dimensione 562.7 kB
Formato Adobe PDF
562.7 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11567/1129455
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 3
social impact