Dark energy and dark matter with SNAP

Details Dark energy and dark matter with SNAP Dark energy and dark matter with SNAP

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003nuphs.124...76l&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 124, p. 76-78.

Physics

Nuclear Physics

Scientific paper

The discovery that the expansion of the Universe is accelerating opens up new frontiers for our understanding of cosmology and particle physics. The nature of the dark energy responsible is intimately tied to the high energy theory and gravitation. Measuring the properties of the accelerating universe and studying both the dark energy and the dark matter of the Universe using supernovae and weak gravitational lensing is the primary aim of the Supernova/Acceleration Probe (SNAP). SNAP can discover and follow thousands of Type Ia supernovae at redshifts z = 0.3 - 1.7. The resulting magnitude-redshift relation can determine the cosmological and dark energy parameters with high precision: the dark energy equation of state w to 0.05 and its time variation w' = dw/dz to +/-0.15. Wide area weak gravitational lensing studies will map the distribution of dark matter in the universe.
This work was supported by the US DOE.

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