Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-11-14
Phys.Rev. D71 (2005) 063522
Astronomy and Astrophysics
Astrophysics
6 pages, 5 figures. Accepted by PRD, changes to fiducial model and other model details, errors in figures 4 and 5 fixed, refer
Scientific paper
10.1103/PhysRevD.71.063522
I discuss several issues that arise when trying to constrain the dark energy equation of state using correlations of the integrated Sachs-Wolfe effect with galaxy counts and lensing of the cosmic microwave background. These techniques are complementary to others such as galaxy shear surveys, and can use data that will already be obtained from currently planned observations. In regimes where cosmic variance and shot noise are the dominant sources of error, constraints could be made on the mean equation of state to within 0.33 and its first derivative to within 1.0. Perhaps more interesting is that the determination of dark energy parameters by these types of experiments depends strongly on the presence or absence of perturbations in the dark energy fluid.
No associations
LandOfFree
Limits of dark energy measurements from CMB lensing-ISW-galaxy count correlations 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 Limits of dark energy measurements from CMB lensing-ISW-galaxy count correlations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Limits of dark energy measurements from CMB lensing-ISW-galaxy count correlations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-256748