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Dark Energy, Expansion History of the Universe, and SNAP | | Eric V. Linder
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3 Feb 2003 | | Journal: | AIP Conf.Proc. 655 (2003) 193-207 | | Subject: | astro-ph | | Abstract: | This talk presents a pedagogical discussion of how precision distance-redshift observations can map out the recent expansion history of the universe, including the present acceleration and the transition to matter dominated deceleration. The proposed Supernova/Acceleration Probe (SNAP) will carry out observations determining the components and equations of state of the energy density, providing insights into the cosmological model, the nature of the accelerating dark energy, and potentially clues to fundamental high energy physics theories and gravitation. This includes the ability to distinguish between various dynamical scalar field models for the dark energy, as well as higher dimension and alternate gravity theories. A new, advantageous parametrization for the study of dark energy to high redshift is also presented. | | Source: | arXiv, astro-ph/0302038 | | Services: | Forum | Review | PDF | Favorites | |
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