Probing Inflation and Dark Energy with Current Cosmological Observations

Details Probing Inflation and Dark Energy with Current Cosmological Observations Probing Inflation and Dark Energy with Current Cosmological Observations

2006-03-15

arxiv.org/abs/astro-ph/0603393v2

JCAP0609:015,2006

Astronomy and Astrophysics

Astrophysics

7 pages, 4 eps figures Revtex4

Scientific paper

10.1088/1475-7516/2006/09/015

It is commonly believed that our Universe has experienced two different stages of accelerated expansion. The early stage is known as inflation and the current acceleration is driven by dark energy. Observing inflation and dark energy dynamics are among the most important aspects of the current cosmological research. In this paper we make a first detailed probe of possible degeneracies between dynamical inflation and dark energy in light of current cosmological observations. We find the inclusion of inflation and dark energy parameters together make the parameter spaces broader, but interestingly deviation from scale-invariant primordial spectrum is sightly more favored by current cosmological observations when one marginalizes over dynamical dark energy models.

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