INVESTIGADORES
GALLO Emanuel
congresos y reuniones científicas
Título:
Unorthodox solutions of Einstein equations for description of dark matter
Autor/es:
EMANUEL GALLO; GESER FEDERICO; MORESCHI OSVALDO
Lugar:
VARSOVIA
Reunión:
Conferencia; GR20; 2013
Institución organizadora:
international society of general relativity and gravitation
Resumen:
An unsolved problem in the study of dark matter is that when
using different techniques;
as for example, dinamical studies of galaxies in a cluster, and weak lensing on
background images; one find no coincidence in the mass content of the galaxy
cluster.
In a previous study of
weak lensing we have discovered that a spacelike contribution
of the energy-momentum tensor has been neglected
in previous works.
Motivated by this, we have shown exact solutions of the field equations, which are
static
and spherically symmetric, with no mass content, but with a non-vanishing spacelike components
of the
stress-energy-momentum tensor; which describe the main aspects of dark matter phenomena.
In this work
we improve on this model by including an energy-momentum tensor
whose mass content matches the predictions
of dynamical studies of a cluster of galaxies and
also adjusts for the weak lens description of the images
in the background.
We will comment on the peculiar spacelike componets of the energy-momentum.
