135 citations · 412 across the 16 of their papers we have counts for
12 papers · 1 filter
Vector models for dark energy
Jose Beltran Jimenez, Antonio L. Maroto
We explore the possibility that the present stage of accelerated expansion of the universe is due to the presence of a cosmic vector field. We show that vector theories allow for t…
Is the CMB cold spot a gate to extra dimensions?
J. A. R. Cembranos, A. de la Cruz-Dombriz, A. Dobado +1
One of the most striking features found in the cosmic microwave background data is the presence of an anomalous Cold Spot (CS) in the temperature maps made by the Wilkinson Microwa…
An introduction to the dark energy problem
Antonio Dobado, Antonio L. Maroto
In this work we review briefly the origin and history of the cosmological constant and its recent reincarnation in the form of the dark energy component of the universe. We also co…
A cosmic vector for dark energy
Jose Beltran Jimenez, Antonio L. Maroto
In this work we show that the presence of a vector field on cosmological scales could explain the present phase of accelerated expansion of the universe. The proposed theory contai…
Cosmology with moving dark energy and the CMB quadrupole
Jose Beltran Jimenez, Antonio L. Maroto
We study the consequences of a homogeneous dark energy fluid having a non-vanishing velocity with respect to the matter and radiation large-scale rest frames. We consider homogeneo…
Catching photons from extra dimensions
J. A. R. Cembranos, A. Dobado, A. L. Maroto
In extra-dimensional brane-world models with low tension, brane excitations provide a natural WIMP candidate for dark matter. Taking into account the various constraints coming fro…