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The WiggleZ Dark Energy Survey: measuring the cosmic expansion history using the Alcock-Paczynski test and distant supernovae

Blake, Chris; Glazebrook, Karl; Davis, Tamara; Brough, Sarah; Colless, Matthew; Contreras, Carlos; Couch, Warrick; Croom, Scott M; Drinkwater, Michael John; Forster, Karl; Gilbank, David; Pracy, Michael; Sharp, Robert

Description

Astronomical observations suggest that today's Universe is dominated by a dark energy of unknown physical origin. One of the most notable results obtained from many models is that dark energy should cause the expansion of the Universe to accelerate: but the expansion rate as a function of time has proved very difficult to measure directly. We present a new determination of the cosmic expansion history by combining distant supernovae observations with a geometrical analysis of large-scale galaxy...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/51245
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1111/j.1365-2966.2011.19606.x

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