1. The Dark Energy Survey.
- Author
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Sánchez, E.
- Subjects
- *
DARK energy , *DARK matter , *EQUATIONS of state , *SUPERNOVAE , *GALAXY clusters - Abstract
A new proposed optical-near infrared survey of 5000 square degrees of the South Galactic Cap is presented. To perform it, a new CCD camera of 3 deg2 field of view will be mounted on the Blanco 4m telescope at Cerro Tololo (Chile). The goal of the survey is the measurement of the dark matter and dark energy densities and the determination of the dark energy equation of state. Four independent methods will be used: galaxy clusters counts and distributions, weak gravitational lensing tomography, angular distribution of galaxies and supernovae Ia distances. Obtaining the four measurements from the same data set will allow important cross-checks of the systematic uncertainties to obtain a robust and precise determination of the parameters. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]
- Published
- 2006
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