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Living in a void: testing the Copernican principle with distant supernovae
Authors:Clifton Timothy  Ferreira Pedro G  Land Kate
Institution:Department of Physics, Oxford Astrophysics, DWB, Keble Road, Oxford, OX1 3RH, United Kingdom. tclifton@astro.ox.ac.uk
Abstract:We show that the local redshift dependence of the luminosity distance can be used to test the Copernican principle that we are not in a central or otherwise special region of the Universe. Future surveys of type Ia supernovae that focus on a redshift range of approximately 0.1-0.4 will be ideally suited to observationally determine the validity of the Copernican principle on new scales, as well as probing the degree to which dark energy must be considered a necessary ingredient in the Universe.
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