Testing dark energy evolution with optimized SNe constraints

Details Testing dark energy evolution with optimized SNe constraints Testing dark energy evolution with optimized SNe constraints

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jpha...40.6941s&link_type=abstract

Journal of Physics A: Mathematical and Theoretical, Volume 40, Issue 25, pp. 6941-6944 (2007).

Physics

Scientific paper

Experimental evidence pointing to the late accelerated expansion of the Universe is often interpreted while assuming a particular dark energy model. We discuss a model-independent approach which relies on optimized estimates of the equation of state parameter at different redshift regions. In this context, recent supernova data favour the cosmological constant scenario over evolving dark energy. Furthermore, the apparent rapid variation in the equation of state parameter w appears to be a feature of certain datasets.

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