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Subluminous Type Ia Supernovae at High Redshift from the Supernova Legacy Survey
S. Gonzalez-Gaitan, K. Perrett, M. Sullivan +15
The rate evolution of subluminous Type Ia Supernovae is presented using data from the Supernova Legacy Survey. This sub-sample represents the faint and rapidly-declining light-curv…
The Supernova Legacy Survey 3-year sample: Type Ia Supernovae photometric distances and cosmological constraints
J. Guy, M. Sullivan, A. Conley +31
We present photometric properties and distance measurements of 252 high redshift Type Ia supernovae (0.15 < z < 1.1) discovered during the first three years of the Supernova Legacy…
Supernova Legacy Survey: Using Spectral Signatures To Improve Type Ia Supernovae As Distance Indicators
E. S. Walker, I. M. Hook, M. Sullivan +22
GMOS optical long-slit spectroscopy at the Gemini-North telescope was used to classify targets from the Supernova Legacy Survey (SNLS) from July 2005 and May 2006 - May 2008. Durin…
Real-time Analysis and Selection Biases in the Supernova Legacy Survey
K. Perrett, D. Balam, M. Sullivan +13
The Supernova Legacy Survey (SNLS) has produced a high-quality, homogeneous sample of Type Ia supernovae (SNe Ia) out to redshifts greater than z=1. In its first four years of full…
The Dependence of Type Ia Supernova Luminosities on their Host Galaxies
M. Sullivan, A. Conley, D. A. Howell +22
(Abridged) Precision cosmology with Type Ia supernovae (SNe Ia) makes use of the fact that SN Ia luminosities depend on their light-curve shapes and colours. Using Supernova Legacy…
Constraining dark matter halo properties using lensed SNLS supernovae
J. Jonsson, M. Sullivan, I. Hook +7
This paper exploits the gravitational magnification of SNe Ia to measure properties of dark matter haloes. The magnification of individual SNe Ia can be computed using observed pro…