CMB Lensing Constraints on Dark Energy and Modified Gravity Scenarios

Details CMB Lensing Constraints on Dark Energy and Modified Gravity Scenarios CMB Lensing Constraints on Dark Energy and Modified Gravity Scenarios

2009-08-11

arxiv.org/abs/0908.1585v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

8 pages, 6 figures

Scientific paper

Weak gravitational lensing leaves a characteristic imprint on the cosmic microwave background temperature and polarization angular power spectra. Here we investigate the possible constraints on the integrated lensing potential from future CMB angular spectra measurements expected from Planck and EPIC. We find that Planck and EPIC will constrain the amplitude of the integrated projected potential responsible for lensing at 6% and 1% level, respectively with very little sensitivity to the shape of the lensing potential. We discuss the implications of such a measurement in constraining dark energy and modified gravity scalar-tensor theories. We then discuss the impact of a wrong assumption on the weak lensing potential amplitude on cosmological parameter inference.

Affiliated with

Also associated with

No associations

Rating

CMB Lensing Constraints on Dark Energy and Modified Gravity Scenarios 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 CMB Lensing Constraints on Dark Energy and Modified Gravity Scenarios, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CMB Lensing Constraints on Dark Energy and Modified Gravity Scenarios will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-369694