Dark energy towards observational tests and data

Details Dark energy towards observational tests and data Dark energy towards observational tests and data

2008-11-30

arxiv.org/abs/0812.0170v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, Vulcano Workshop 2008, "Frontiers objects in Astrophysics and Particle Physics" May 26-31, 2008

Scientific paper

A huge amount of good quality data converges towards the picture of a spatially flat universe undergoing the today observed phase of accelerated expansion. This new observational trend is commonly addressed as Precision Cosmology. Despite of the excellent surveys, the nature of dark energy, dominating the matter-energy content of the universe, is still unknown and a lot of different scenarios are viable candidates to explain cosmic acceleration. Methods to test these cosmological models are based on distance measurements and lookback time toward astronomical objects used as standard candles. The related degeneracy problem is the signal that more data at low 0

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