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==== Colour variation law ==== ASCII files for the colour variation law : * salt2_colour_law_guy2010.dat Colour variation law as used in Guy et al.(2010) * salt2_colour_law_guy2007.dat Colour variation law as obtained in Guy et al.(2007) Note: In Guy et al.(2007), for the modeling of light curves, the colour variation law was not integrated in the filters; an effective wavelength for each filter was considered. It is not the case any more in SNLS-3 analysis. This explains part of the difference between the two colour variation laws. Part is also due to modifications in the parametrization, training sample ...