| Measurement of Ωm, ΩΛ from a blind analysis of Type Ia supernovae with CMAGIC: Using color information to verify the acceleration of the Universe (2008) | |||||||||||||
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Abstract | |||||||||||||
| We present measurements of Ωm and ΩΛ from a blind analysis of 21 high redshift supernovae using a new technique (CMAGIC) for fitting the multicolor lightcurves of Type Ia supernovae, first introduced in Wang et al. (2003). CMAGIC takes advantage of the remarkably simple behavior of Type Ia supernovae on color-magnitude diagrams, and has several advantages over current techniques based on maximum magnitudes. Among these are a reduced sensitivity to host galaxy dust extinction, a shallower luminosity-width relation, and the relative simplicity of the fitting procedure. This allows us to provide a cross check of previous supernova cosmology results, despite the fact that current data | |||||||||||||
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