Reducing zero-point systematics in dark energy supernova experiments

Author Info

L. Faccioli, University of California - Berkeley
A. G. Kim, Lawrence Berkeley National Laboratory
R. Miquel, Institucio Catalana de Recerca i Estudis Avancats
G. Bernstein, University of Pennsylvania
A. Bonissent, Campus de Luminy
M. Brown, Massachusetts Institute of Technology
W. Carithers, Lawrence Berkeley National Laboratory
Jodi L. Christiansen, California Polytechnic State University - San Luis ObispoFollow
N. Connolly, Hamilton College - Clinton
S. Deustua, Space Telescope Science Institute
D. Gerdes, University of Michigan - Ann Arbor
L. Gladney, University of Pennsylvania
G. Kushner, Lawrence Berkeley National Laboratory
E. V. Linder, University of California - Berkeley
S. McKee, University of Michigan - Ann Arbor
A. Mostek, University of California - Berkeley
H. Shukla, Lawrence Berkeley National Laboratory
A. Stebbins, Fermi National Accelerator Laboratory
C. Stoughton, Fermi National Accelerator Laboratory
D. Tucker, Fermi National Accelerator Laboratory

Recommended Citation

Postprint version. Published in Astroparticle Physics, Volume 34, Issue 12, July 1, 2011, pages 847-857.

The definitive version is available at https://doi.org/10.1016/j.astropartphys.2011.03.003.

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.

Disciplines

Physics

Copyright

2011 Elsevier.