Other
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20512302c&link_type=abstract
American Astronomical Society Meeting 205, #123.02; Bulletin of the American Astronomical Society, Vol. 36, p.1551
Other
Scientific paper
We present measurements of Ω m and Ω Λ from a blind analysis of 24 high redshift Type Ia supernovae using a new technique (CMAGIC) for fitting multi-color lightcurves first introduced in Wang '03. CMAGIC takes advantage of the remarkably simple behavior of Type Ia supernovae on color-magnitude diagrams, and has several advantages over techniques based on maximum magnitudes. Among these are a substantially reduced sensitivity to host galaxy dust extinction independent of many assumptions about the nature of dust in other galaxies, a shallower luminosity-width relation, and the relative simplicity of the fitting procedure. This allows us to provide a powerful systematic cross check of previous supernova cosmology results, despite the fact that current data sets were not observed in a manner optimized for CMAGIC.
Conley Alex
Supernova Cosmology Project Collaboration
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