Mathematics – Logic
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003mnras.344..129s&link_type=abstract
Monthly Notice of the Royal Astronomical Society, Volume 344, Issue 1, pp. 129-133.
Mathematics
Logic
15
Methods: Statistical, Cosmological Parameters, Cosmology: Theory
Scientific paper
We construct a simple, regularized estimator for the dark energy equation of state by using the recently introduced linear response approximation. We show that even a simple regularization substantially improves the performance of the free-form fitting approach. The use of the linear response approximation allows an analytical construction of the maximum likelihood estimator, in a convenient and easy to use matrix form. We show that, in principle, such regularized free-form fitting can give us an unbiased estimate of the functional form of the equation of state of dark energy. We show the efficacy of this approach on simulated SuperNova Acceleration Probe class data, but it is easy to generalize this method to include other cosmological tests. We provide a possible explanation for the sweet spots seen in other reconstruction methods.
No associations
LandOfFree
A regularized free-form estimator for dark energy 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 regularized free-form estimator for dark energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A regularized free-form estimator for dark energy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1080442