eprintid: 58115
rev_number: 34
eprint_status: archive
userid: 608
dir: disk0/00/05/81/15
datestamp: 2010-10-16 10:21:23
lastmod: 2021-11-29 00:15:10
status_changed: 2010-10-16 10:21:23
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Mena, O
creators_name: Santiago, J
creators_name: Weller, J
title: Constraining inverse-curvature gravity with supernovae
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
keywords: HUBBLE-SPACE-TELESCOPE, DARK ENERGY, COSMOLOGICAL CONSTANT, NEWTONIAN LIMIT, GALAXY CLUSTERS, UNIVERSE, POWERS, MODELS, SCALAR
note: © 2006 The American Physical Society
abstract: We show that models of generalized modified gravity, with inverse powers of the curvature, can explain the current accelerated expansion of the Universe without resorting to dark energy and without conflicting with solar system experiments. We have solved the Friedmann equations for the full dynamical range of the evolution of the Universe and performed a detailed analysis of supernovae data in the context of such models that results in an excellent fit. If we further include constraints on the current expansion of the Universe and on its age, we obtain that the matter content of the Universe is 0.07 <=omega(m)<= 0.21 (95% C.L.). Hence the inverse-curvature gravity models considered cannot explain the dynamics of the Universe just with a baryonic matter component.
date: 2006-02-03
publisher: AMERICAN PHYSICAL SOC
official_url: http://dx.doi.org/10.1103/PhysRevLett.96.041103
vfaculties: VMPS
oa_status: green
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_manual
elements_source: Web of Science
elements_id: 68023
doi: 10.1103/PhysRevLett.96.041103
lyricists_name: Weller, Jochen
lyricists_id: JWELL79
full_text_status: public
publication: PHYS REV LETT
volume: 96
number: 4
article_number: 041103
issn: 0031-9007
citation:        Mena, O;    Santiago, J;    Weller, J;      (2006)    Constraining inverse-curvature gravity with supernovae.                   PHYS REV LETT , 96  (4)    , Article 041103.  10.1103/PhysRevLett.96.041103 <https://doi.org/10.1103/PhysRevLett.96.041103>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/58115/1/58115.pdf