Living in a void: testing the Copernican principle with distant supernovae |
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Authors: | Clifton Timothy Ferreira Pedro G Land Kate |
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Institution: | Department of Physics, Oxford Astrophysics, DWB, Keble Road, Oxford, OX1 3RH, United Kingdom. tclifton@astro.ox.ac.uk |
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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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