158 citations · 1.4k across the 42 of their papers we have counts for
4 papers · 1 filter
The `Cosmic Seagull': a highly magnified disk-like galaxy at z~2.8 behind the Bullet Cluster
V. Motta, E. Ibar, T. Verdugo +8
We present Atacama Large Millimeter/submillimeter Array measurements of the `Cosmic Seagull', a strongly magnified galaxy at z=2.7779 behind the Bullet Cluster. We report CO(3-2) a…
Constraints on barotropic dark energy models by a new phenomenological parameterization
Jaime Roman-Garza, Tomas Verdugo, Juan Magana +1
In this paper, we propose a new phenomenological two parameter parametrization of to constrain barotropic dark energy models by considering a spatially flat FRW universe, ne…
Cosmological constraints on alternative model to Chaplygin fluid revisited
A. Hernandez-Almada, Juan Magana, Miguel A. Garcia-Aspeitia +1
In this work we explore an alternative phenomenological model to Chaplygin gas proposed by H. Hova et. al., consisting on a modification of a perfect fluid, to explain the dynamics…
Brane with variable tension as a possible solution to the problem of the late cosmic acceleration
Miguel A. Garcia-Aspeitia, A. Hernandez-Almada, Juan Magaña +3
Braneworld models have been proposed as a possible solution to the problem of the accelerated expansion of the Universe. The idea is to dispense the dark energy (DE) and drive the…