351 citations · 665 across the 42 of their papers we have counts for
4 papers · 1 filter
Probing interaction in the dark sector
P. C. Ferreira, J. C. Carvalho, J. S. Alcaniz
A phenomenological attempt at alleviating the so-called coincidence problem is to allow the dark matter and dark energy to interact. By assuming a coupled quintessence scenario cha…
A simple prescription for simulating and characterizing gravitational arcs
Cristina Furlanetto, Basílio X. Santiago, Martín Makler +6
Simple models of gravitational arcs are crucial to simulate large samples of these objects with full control of the input parameters. These models also provide crude and automated…
Parameterizing the flattening of galaxies rotation curves on an expanding locally anisotropic background
P. Castelo Ferreira
In this paper are discussed possible many body generalizations of the expanding locally anisotropic metric ansatz with respect to approximately Newtonian gravitational systems. Thi…
A Locally Anisotropic Metric for Matter in an Expanding Universe: I. The Ansatz and the Modified Newton Law
P. Castelo Ferreira
It is suggested a metric ansatz to describe local matter in an expanding universe, hence interpolating between the Schwarzschild metric at small spatial scales and the FLRW metric…