SALT spectral time series

(or templates/surfaces)

Please use the complete installation scripts that you can find here if you are not familiar with the package organization and want to reproduce published results.

• salt2_model_data-2-4.tar.gz, from Betoule et al. (2014), Joint SDSS/SNLS Lightcurve Analysis (1)
• salt2_model_data-2-0.tar.gz, from Guy et al. (2010), SNLS 3 year cosmology analysis (SNLS3) (2)
• salt2_model_data-1-0.tar.gz, from Guy et al. (2007), first release of SALT2 (with salt2_spec_dispersion_scaling.dat fixed)
• salt_model_data-1-0.tar.gz, from Guy et al. (2005), SALT1 model data

(1) Extracted from salt2-4_data.tgz (md5:af829c7f177c6037adcbe0a89360464a) that can also be found in the SDSS-II/SNLS3 Joint Light-curve Analysis data release page.

(2) Data set should be used with code version 2.2.0 or higher. The same applies to more recent versions.

The archive file contains all the data that define the model.

SALT2

• salt2_template_0.dat Average spectral sequence
• salt2_template_1.dat Spectral sequence of 1st variability component
• salt2_color_correction.dat Model of color variation law
• salt2_color_dispersion.dat Model of color errors (~ k-correction errors)
• salt2_lc_relative_variance_0.dat Variance of average spectral sequence (error on mean), for lightcurves
• salt2_lc_relative_variance_1.dat Variance of first component (error on mean), for lightcurves
• salt2_lc_relative_covariance_01.dat Covariance of of components 0 and 1, for lightcurves
• salt2_lc_dispersion_scaling.dat Error scaling to account for the residual dispersion, for lightcurves
• salt2_spec_variance_0.dat Variance of average spectral sequence (error on mean), for spectra (only in Guy 2007 version)
• salt2_spec_variance_1.dat Variance of first component (error on mean), for spectra (only in Guy 2007 version)
• salt2_spec_covariance_01.dat Covariance of of components 0 and 1, for spectra (only in Guy 2007 version)

SALT1

• salt_template.dat Average spectral sequence (modified version of P. Nugent template)
• corrections_stretch Polynomial corrections as a function of stretch, phase, wavelength
• corrections_color Polynomial corrections as a function of color and wavelength