143 citations · 395 across the 9 of their papers we have counts for
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Analytical Estimate of the Effect of Spherical Inhomogeneities on Luminosity Distance and Redshift
N. Brouzakis, N. Tetradis
We provide an analytical estimate of the effect of a spherical inhomogeneity on light beams that travel through it. We model the interior of the inhomogeneity in terms of the Lemai…
Neutrino Lumps in Quintessence Cosmology
N. Brouzakis, N. Tetradis, C. Wetterich
Neutrinos interacting with the quintessence field can trigger the accelerated expansion of the Universe. In such models with a growing neutrino mass the homogeneous cosmological so…
Cosmological Acceleration and Gravitational Collapse
Pantelis S. Apostolopoulos, Nikolaos Brouzakis, Nikolaos Tetradis +1
The acceleration parameter defined through the local volume expansion is negative for a pressureless, irrotational fluid with positive energy density. In the presence of inhomogene…
Static Configurations of Dark Energy and Dark Matter
N. Brouzakis, N. Tetradis
We study static configurations of dark matter coupled to a scalar field responsible for the dark energy of the Universe. The dark matter is modelled as a Fermi gas within the Thoma…