Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20712603i&link_type=abstract
American Astronomical Society Meeting 207, #126.03; Bulletin of the American Astronomical Society, Vol. 37, p.1371
Astronomy and Astrophysics
Astronomy
Scientific paper
It is important to determine if cosmic acceleration is due to a dark energy component in the universe or if it is due to a modification in the gravity sector. We report here results on a procedure that we proposed recently and that will allow one to make such a distinction. The procedure goes one important step further than constraining the equation of state. It uses different combinations of simulated data of CMB, Weak Gravitational Lensing, and Supernovae. We explored the fact that the effect of dark energy on the expansion history must be consistent with the effect of dark energy on the growth factor of large-scale structure. The procedure is able to detect inconsistencies in this relation and thus provides a test to detect signatures of modified gravity models. (The authors acknowledge the support of: NASA TA-NNG04GK55G; AST-0413793; NSERC-PDF; and NSF-GRF.)
Ishak Mustapha
Spergel David N.
Upadhye Amol
No associations
LandOfFree
A new procedure to distinguish between dark energy models and modified gravity models 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 A new procedure to distinguish between dark energy models and modified gravity models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new procedure to distinguish between dark energy models and modified gravity models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1285236