2001/01/30 by Saurabh W. Jha, Saurabh Jha, Jha, Saurabh +2
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Gamma-ray bursts and supernovae #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0101521
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.)
arxiv created 2001/01/30 · openalex publication_date 2001/01/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.