w-cosmological singularities

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.124004· OSTI ID:21503740

Fernandez-Jambrina, L ^[1]

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1. Matematica Aplicada, E.T.S.I. Navales, Universidad Politecnica de Madrid, Arco de la Victoria s/n, E-28040 Madrid (Spain)

In this paper we characterize barotropic index singularities of homogeneous isotropic cosmological models [M. P. Dabrowski and T. Denkiewicz, Phys. Rev. D 79, 063521 (2009).]. They are shown to appear in cosmologies for which the scale factor is analytical with a Taylor series in which the linear and quadratic terms are absent. Though the barotropic index of the perfect fluid is singular, the singularities are weak, as it happens for other models for which the density and the pressure are regular.

• OSTI ID: 21503740
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 12; Other Information: DOI: 10.1103/PhysRevD.82.124004; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGICAL MODELS
COSMOLOGY
DENSITY
IDEAL FLOW
SINGULARITY
FLUID FLOW
INCOMPRESSIBLE FLOW
MATHEMATICAL MODELS
PHYSICAL PROPERTIES
STEADY FLOW