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Title: Evolution of the cosmological horizons in a universe with countably infinitely many state equations

Journal Article · · Journal of Cosmology and Astroparticle Physics
;  [1];  [2]
  1. Departamento de Astrofísica, Universidad de la Laguna, E-38205 La Laguna, Tenerife (Spain)
  2. Facultad de Ciencias Matemáticas, Universidad Complutense de Madrid, E-28040 Madrid (Spain)

This paper is the second of two papers devoted to the study of the evolution of the cosmological horizons (particle and event horizons). Specifically, in this paper we consider a general accelerated universe with countably infinitely many constant state equations, and we obtain simple expressions in terms of their respective recession velocities that generalize the previous results for one and two state equations. We also provide a qualitative study of the values of the horizons and their velocities at the origin of the universe and at the far future, and we prove that these values only depend on one dominant state equation. Finally, we compare both horizons and determine when one is larger than the other.

OSTI ID:
22283015
Journal Information:
Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 02; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
Country of Publication:
United States
Language:
English