Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-12-01
JCAP 1011:015,2010
Astronomy and Astrophysics
Astrophysics
4 pages; PRL submitted
Scientific paper
10.1088/1475-7516/2010/11/015
The gravitational lensing distortion of distant sources by the large-scale distribution of matter in the Universe has been extensively studied. In contrast, very little is known about the effects due to the large-scale distribution of dark energy. We discuss the use of Type Ia supernovae as probes of the spatial inhomogeneity and anisotropy of dark energy. We show that a shallow, almost all-sky survey can limit rms dark energy fluctuations at the horizon scale down to a fractional energy density of ~10^-4
Caldwell Robert
Cooray Asantha
Holz Daniel E.
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