Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-08-10
Astropart.Phys. 24 (2006) 451-458
Astronomy and Astrophysics
Astrophysics
7 pages, 2 tables, no figures. Version to appear in Astroparticle Physics. Few typos fixed
Scientific paper
10.1016/j.astropartphys.2005.09.
We present a new technique to extract the cosmological information from high-redshift supernova data in the presence of calibration errors and extinction due to dust. While in the traditional technique the distance modulus of each supernova is determined separately, in our approach we determine all distance moduli at once, in a process that achieves a significant degree of self-calibration. The result is a much reduced sensitivity of the cosmological parameters to the calibration uncertainties. As an example, for a strawman mission similar to that outlined in the SNAP satellite proposal, the increased precision obtained with the new approach is roughly equivalent to a factor of five decrease in the calibration uncertainty.
Kim Alex G.
Miquel Ramon
No associations
LandOfFree
Optimal Extraction of Cosmological Information from Supernova Data in the Presence of Calibration Uncertainties 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 Optimal Extraction of Cosmological Information from Supernova Data in the Presence of Calibration Uncertainties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimal Extraction of Cosmological Information from Supernova Data in the Presence of Calibration Uncertainties will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-277054