%0 Journal Article
%A López Maroto, Antonio
%A Beltrán Jiménez, José
%A Yepes Alonso, Gustavo
%A Carlesi, Edoardo
%A Knebe, Alexander
%T Vector dark energy and high-z massive clusters
%D 2011
%@ 0035-8711
%U https://hdl.handle.net/20.500.14352/44258
%X 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.
%~