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Dark Energy Task Force
DETF was jointly organized by 3 agencies: DOE, NSF and NASA
Charged to “advise the agencies on the optimum near and intermediate-term programs to investigate dark energy and… to advance the justification, specification and optimization of LST and JDEM.”
“Prioritize approaches (not projects)”
Findings from preliminary report highlighted four techniques:
- Baryon Acoustic Oscillations: “only recently established. Less affected by astrophysical uncertainties than other techniques. “
- Galaxy Clusters: “least developed. Eventual accuracy very difficult to predict.”
- Type Ia Supernovae: “presently most powerful and best proven technique. “
- Weak Lensing: “also emerging technique… If the systematic errors are at or below the level proposed by the proponents, it is likely to be the most powerful individual technique and also the most powerful component in a multi-technique program.”