Fitting inverse power-law quintessence models using the SNAP satellite

Details Fitting inverse power-law quintessence models using the SNAP satellite Fitting inverse power-law quintessence models using the SNAP satellite

2002-02-07

arxiv.org/abs/astro-ph/0202157v1

Phys.Rev. D66 (2002) 023530

Astronomy and Astrophysics

Astrophysics

5 pages, 6 figures

Scientific paper

10.1103/PhysRevD.66.023530

We investigate the possibility of using the proposed SNAP satellite in combination with low-z supernova searches to distinguish between different inverse power-law quintessence models. If the true model is that of a cosmological constant, we determine the prospects of ruling out the inverse power-law potential. We show that SNAP combined with e.g. the SNfactory and an independent measurement of the mass energy density to 17% accuracy can distinguish between an inverse power-law potential and a cosmological constant and put severe constraints on the power-law exponent.

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