Astronomy and Astrophysics – Astronomy
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...202.2306p&link_type=abstract
American Astronomical Society Meeting 202, #23.06; Bulletin of the American Astronomical Society, Vol. 35, p.727
Astronomy and Astrophysics
Astronomy
Scientific paper
The Hubble diagram of Type Ia Supernovae provides the most direct current measurement of the expansion history of the universe, including the present acceleration and the transition to matter-dominated deceleration. Recent measurements already yield statistical uncertainties small enough that we are close to being limited by systematics. I will review the anticipated improvement in systematics attainable by the next generations of experiments from ground and space that promise a systematics-controlled prize: a detailed expansion history of the universe that can teach us about the nature of the mysterious "dark energy" that accelerates the universe.
This work is supported by the U.S. Dept. of Energy, Office of Science, under contract DE-AC03-76SF00098.
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