Physics – High Energy Physics
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21546104f&link_type=abstract
American Astronomical Society, AAS Meeting #215, #461.04; Bulletin of the American Astronomical Society, Vol. 42, p.492
Physics
High Energy Physics
Scientific paper
We study the effect of filter zero point uncertainties for a future space-based dark energy mission modelled on the proposed JDEM satellite. We show how to take advantage of the correlation between SNe introduced by the filter zero point uncertainties to fit for all the SNe simultaneously, thus achieving a significant improvement in the figure of merit of the SN part of JDEM over more traditional fit methods. We show that this conclusion is robust under very different mission configurations (number of observed SNe, survey redshift etc) and that our approach to SN fitting considerably eases the otherwise very stringent calibration requirements of JDEM.
This work was supported by the Director, Office of Science, Office of High Energy Physics, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
Faccioli Lorenzo
Kim Alex
Miquel Ramon
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