Systematics analysis of the Supernova Legacy Survey
Alexander Conley, for the Supernova Legacy Survey

Abstract: I discuss the expected systematic errors for the 3rd year, Supernova Legacy Survey (SNLS) analysis. These can be roughly, separated into uncertainties in our understanding of SNe Ia,, and calibration errors. Efforts are underway using the SNLS, data, as well as supplementary CFHT observations, to improve, both areas; for SN modeling SNLS is the largest and most homogenous, SN sample available, and so plays a critical role in this problem.