COM2 - Dark Energy and Universe Acceleration |
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Speaker |
Guy, Julien |
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Co-autors |
SNLS collaboration |
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Talk Title |
SNLS 3rd Year Cosmological Results |
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Abstract |
Type Ia supernovae (SNe Ia) currently provide the most direct evidence for an accelerating Universe and for the existence of an unknown dark energy driving this expansion. The Supernova Legacy Survey (SNLS) is a five-year project which has delivered around 500 high-redshift SNe Ia light curves and spectra in the redshift range $0.2 < z < 1.0$ in order to constrain the dark energy equation of state, w. We present the cosmological results obtained with about 240 SNe Ia followed-up during the first 3 years of the survey. This supernova dataset is the largest homogeneous high redshift sample available today. It allows us to test for various systematic uncertainties potentially affecting our measurement and therefore derive robust cosmological constraints. |
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