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Título:
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Vector dark energy and high-z massive clusters
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Autores:
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López Maroto, Antonio ;
Beltrán Jiménez, José ;
Yepes Alonso, Gustavo ;
Carlesi, Edoardo ;
Knebe, Alexander
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Tipo de documento:
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texto impreso
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Editorial:
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Oxford University Press, 2011-12
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física
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Tipo = Artículo
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Resumen:
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The detection of extremely massive clusters at z > 1 such as SPT-CL J0546-5345, SPT-CL J2106-5844 and XMMU J2235.3 2557 has been considered by some authors as a challenge to the standard ? cold dark matter cosmology. In fact, assuming Gaussian initial conditions, the theoretical expectation of detecting such objects is as low as =1 per cent. In this paper we discuss the probability of the existence of such objects in the light of the vector dark energy paradigm, showing by means of a series of N-body simulations that chances of detection are substantially enhanced in this non-standard framework.
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En línea:
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https://eprints.ucm.es/id/eprint/26033/1/1108.4173.pdf
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