NAGIOS: RODERIC FUNCIONANDO

Dark coupling

Repositori DSpace/Manakin

Valencià Castellano

Inici
Investigació
e-prints
22 - Física
Visualitza element

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Dark coupling

Mostra el registre parcial de l'element

dc.contributor.author	Gavela, María Belén
dc.contributor.author	Hernández Díaz, Daniel
dc.contributor.author	López Honórez, Laura
dc.contributor.author	Mena Requejo, Olga
dc.contributor.author	Rigolin, Stefano
dc.date.accessioned	2014-09-11T08:33:06Z
dc.date.available	2014-09-11T08:33:06Z
dc.date.issued	2009
dc.identifier.citation	Gavela, M. B. Hernández, D. López Honórez, Laura Mena Requejo, Olga Rigolin, S. 2009 Dark coupling Journal Of Cosmology And Astroparticle Physics 2009 7 034
dc.identifier.uri	http://hdl.handle.net/10550/37736
dc.description.abstract	The two dark sectors of the universe-dark matter and dark energy - may interact with each other. Background and linear density perturbation evolution equations are developed for a generic coupling. We then establish the general conditions necessary to obtain models free from non-adiabatic instabilities. As an application, we consider a viable universe in which the interaction strength is proportional to the dark energy density. The scenario does not exhibit 'phantom crossing' and is free from instabilities, including early ones. A sizeable interaction strength is compatible with combined WMAP, HST, SN, LSS and H(z) data. Neutrino mass and/or cosmic curvature are allowed to be larger than in non-interacting models. Our analysis sheds light as well on unstable scenarios previously proposed.
dc.language.iso	eng
dc.relation.ispartof	Journal Of Cosmology And Astroparticle Physics, 2009, vol. 2009, num. 7, p. 034
dc.subject	Astrofísica
dc.title	Dark coupling
dc.type	journal article	es_ES
dc.date.updated	2014-09-11T08:33:06Z
dc.identifier.doi	10.1088/1475-7516/2009/07/034
dc.identifier.idgrec	097546
dc.rights.accessRights	open access	es_ES