Energy Conditions and Supernovae Observations

Details Energy Conditions and Supernovae Observations Energy Conditions and Supernovae Observations

2006-08-01

arxiv.org/abs/astro-ph/0608031v2

Phys.Rev. D74 (2006) 067301

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures; v2: References added, misprints corrected, published in Phys.Rev.D in the present form

Scientific paper

10.1103/PhysRevD.74.067301

In general relativity, the energy conditions are invoked to restrict general energy-momentum tensors on physical grounds. We show that in the standard Friedmann-Lemaitre-Robertson-Walker approach to cosmological modelling where the equation of state of the cosmological fluid is unknown, the energy conditions provide model-independent bounds on the behavior of the distance modulus of cosmic sources as a function of the redshift. We use both the gold and the legacy samples of current type Ia supenovae to carry out a model-independent analysis of the energy conditions violation in the context of standard cosmology.

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