Chimento, L.P. - Lazkoz, R.

En:

Phys Lett Sect B Nucl Elem Part High-Energy Phys 2005;615(3-4):146-152

Fecha:

2005

Formato:

application/pdf

Tipo de documento:

info:eu-repo/semantics/article
info:ar-repo/semantics/artículo
info:eu-repo/semantics/publishedVersion

Descriptores:

article - chemical modification - cold - cosmos - darkness - gas - molecular model

Descripción:

We extend the homogeneous modified Chaplygin cosmologies to large-scale perturbations by formulating a Zeldovich-like approximation. We show that the model interpolates between an epoch with a soft equation of state and a de Sitter phase, and that in the intermediate regime its matter content is simply the sum of dust and a cosmological constant. We then study how the large-scale inhomogeneities evolve and compare the results with cold dark matter (CDM), ΛCDM and generalized Chaplygin scenarios. We find that unlike that like the latter, our models resemble ΛCDM. © 2005 Elsevier B.V. All rights reserved.
Fil:Chimento, L.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.

Identificador(es):

http://hdl.handle.net/20.500.12110/paper_03702693_v615_n3-4_p146_Chimento

Derechos:

info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar

Descargar texto: paper_03702693_v615_n3-4_p146_Chimento.oai

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Cita bibliográfica:

Chimento, L.P. (2005). Large-scale inhomogeneities in modified Chaplygin gas cosmologies (info:eu-repo/semantics/article). [consultado: ] Disponible en el Repositorio Digital Institucional de la Universidad de Buenos Aires: <http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&cl=CL1&d=paper_03702693_v615_n3-4_p146_Chimento_oai>