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arXiv · 0907.3578

Cosmological Model with a Local Void: New Supernova Constraints

Le Tuan Anh Ho·Shao Chin Cindy Ng
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Abstract

A simple inhomogeneous cosmological model with a local void is constrained with the latest Union supernova compilation. To fit the supernova data, a large local void on the scales of 1 Gpc is found, contrary to the small scales of 200 Mpc in the previous finding. A more realistic inhomogeneous cosmological model may be required to fit the supernova data. Alternatively, a clumpy universe with clumpiness parameter < 1 can fit the supernova data with reduced local void scales.

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Le Tuan Anh Ho, Shao Chin Cindy Ng. 2009-07-21. Cosmological Model with a Local Void: New Supernova Constraints. https://doi.org/10.1142/s0217751x09047156

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