Reducing Zero-point Systematics in Dark Energy Supernova Experiments
Abstract
We study the effect of filter zero-point uncertainties on future supernova dark energy missions. Fitting for calibration parameters using simultaneous analysis of all Type Ia supernova standard candles achieves a significant improvement over more traditional fit methods. This conclusion is robust under diverse experimental configurations (number of observed supernovae, maximum survey redshift, inclusion of additional systematics). This approach to supernova fitting considerably eases otherwise stringent mission calibration requirements. As an example we simulate a space-based mission based on the proposed JDEM satellite; however the method and conclusions are general and valid for any future supernova dark energy mission, ground or space-based.
Cite
@article{arxiv.1004.3511,
title = {Reducing Zero-point Systematics in Dark Energy Supernova Experiments},
author = {L. Faccioli and A. G. Kim and R. Miquel and G. Bernstein and A. Bonissent and M. Brown and W. Carithers and J. Christiansen and N. Connolly and S. Deustua and D. Gerdes and L. Gladney and G. Kushner and E. V. Linder and S. McKee and N. Mostek and H. Shukla and A. Stebbins and C. Stoughton and D. Tucker},
journal= {arXiv preprint arXiv:1004.3511},
year = {2011}
}
Comments
30 pages,8 figures, 5 table, one reference added, submitted to Astroparticle Physics