Mathematics – Logic
Scientific paper
Jul 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009phrvd..80b3004b&link_type=abstract
Physical Review D, vol. 80, Issue 2, id. 023004
Mathematics
Logic
7
Dark Energy, Cosmology, Observational Cosmology
Scientific paper
It has been recently shown that the presence of a vector field over cosmological scales could explain the observed accelerated expansion of the Universe without introducing either new scales or unnatural initial conditions in the early Universe, thus avoiding the coincidence problem. Here, we present a detailed analysis of the constraints imposed by supernova type Ia (SNIa), cosmic microwave background (CMB), and baryon acoustic oscillation (BAO) data on the vector dark energy model with general spatial curvature. We find that contrary to standard cosmology, CMB data exclude a flat universe for this model and, in fact, predict a closed geometry for the spatial sections. We see that CMB and SNIa Gold data are perfectly compatible at the 1-sigma level, however the SNIa Union data set exhibits a 3-sigma tension with CMB. The same level of tension is also found between SNIa and BAO measurements.
Beltrán Jiménez Jose
Lazkoz Ruth
Maroto Antonio L.
No associations
LandOfFree
Cosmic vector for dark energy: Constraints from supernovae, cosmic microwave background, and baryon acoustic oscillations 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 Cosmic vector for dark energy: Constraints from supernovae, cosmic microwave background, and baryon acoustic oscillations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic vector for dark energy: Constraints from supernovae, cosmic microwave background, and baryon acoustic oscillations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-768999