Testing Cosmic Acceleration with Type Ia Supernovae
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We discuss recent evidence for an accelerating Universe from measurements of type Ia supernovae at high redshift, and describe tests of various systematic effects such as extinction and evolution that could be biasing the cosmological result. Continued observations of these objects, both over a wider wavelength region and at higher redshift, should provide strong evidence in favor or against the accelerating Universe hypothesis.
9 pages, 4 figures, to appear in the proceedings of IAU Symposium 201, 'New Cosmological Data and the Values of the Fundamental Parameters' (A. Lasenby and A. Wilkinson, eds.)
9 pages, 4 figures, to appear in the proceedings of IAU Symposium 201, 'New Cosmological Data and the Values of the Fundamental Parameters' (A. Lasenby and A. Wilkinson, eds.)