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We model the chameleon effect on cosmological statistics for the modified gravity f(R) model of cosmic acceleration. The chameleon effect, required to make the model compatible with local tests of gra...
Reconstruction of f(R, T) gravity describing matter dominated and accelerated phases
Reconstruction gravity describing dominated accelerated phases
2011/10/12
We investigate the cosmological reconstruction in modified f(R,T) gravity, where R is the Ricci scalar and T the trace of the stress-energy tensor. Special attention is attached to the case in which t...
A recent study of the satellite galaxies surrounding the Milky Way casts doubt on existing models of dark matter — according to its authors in Germany, Austria and Australia. The locations of the gala...
Modeling Repulsive Gravity with Creation
Cosmology theory observation creation negative energy fields SNe Ia
2009/5/12
There is a growing interest among cosmologists for theories
with negative energy scalar fields and creation, in order to model a repulsive
gravity. The classical steady state cosmology proposed by B...