38 citations · 85 across the 3 of their papers we have counts for
11 papers · 1 filter
On the equivalence of nonadiabatic fluids
W. Barreto
Here we show how an anisotropic fluid in the diffusion limit can be equivalent to an isotropic fluid in the streaming out limit, in spherical symmetry. For a particular equation of…
A framework for large-scale relativistic simulations in the characteristic approach
Roberto Gómez, Willians Barreto, Simonetta Frittelli
We present a new computational framework (LEO), that enables us to carry out the very first large-scale, high-resolution computations in the context of the characteristic approach…
Why does gravitational radiation produce vorticity?
L. Herrera, W. Barreto, J. Carot +1
We calculate the vorticity of world--lines of observers at rest in a Bondi--Sachs frame, produced by gravitational radiation, in a general Sachs metric. We claim that such an effec…
Thermo--inertial bouncing of a relativistic collapsing sphere: A numerical model
L. Herrera, A. Di Prisco, W. Barreto
We present a numerical model of a collapsing radiating sphere, whose boundary surface undergoes bouncing due to a decreasing of its inertial mass density (and, as expected from the…
Self-similar and charged spheres in the diffusion approximation
W. Barreto, A. Da Silva
We study spherical, charged and self--similar distributions of matter in the diffusion approximation. We propose a simple, dynamic but physically meaningful solution. For such a so…
Equation of state and transport processes in self--similar spheres
W. Barreto, C. Peralta, L. Rosales
We study the effect of transport processes (diffusion and free--streaming) on a collapsing spherically symmetric distribution of matter in a self--similar space--time. A very simpl…