Dynamical Dark Energy model parameters with or without massive neutrinos

Details Dynamical Dark Energy model parameters with or without massive neutrinos Dynamical Dark Energy model parameters with or without massive neutrinos

2009-06-24

arxiv.org/abs/0906.4501v1

JCAP 0907:036,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

9 pages, 3 figures, submitted to JCAP

Scientific paper

10.1088/1475-7516/2009/07/036

We use WMAP5 and other cosmological data to constrain model parameters in quintessence cosmologies, focusing also on their shift when we allow for non-vanishing neutrino masses. The Ratra-Peebles (RP) and SUGRA potentials are used here, as examples of slowly or fastly varying state parameter w(a). Both potentials depend on an energy scale \Lambda. Here we confirm the results of previous analysis with WMAP3 data on the upper limits on \Lambda, which turn out to be rather small (down to ~10^{-9} in RP cosmologies and ~10^{-5} for SUGRA). Our constraints on \Lambda are not heavily affected by the inclusion of neutrino mass as a free parameter. On the contrary, when the neutrino mass degree of freedom is opened, significant shifts in the best-fit values of other parameters occur.

Affiliated with

Also associated with

No associations

Rating

Dynamical Dark Energy model parameters with or without massive neutrinos does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dynamical Dark Energy model parameters with or without massive neutrinos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical Dark Energy model parameters with or without massive neutrinos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-106299