Shear-dependent Pressure in a Lema\^itre-Tolman-Bondi Metric
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🌌 astro-ph.CO
gr-qchep-ph
keywords
darkenergyepsilonitre-tolman-bondilemametricpressureshear-dependent
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We propose to explain the dimming of distant supernovae as the combined effect of dark energy and a Lema\^itre-Tolman-Bondi (LTB) metric. We take dark energy to have a shear-dependent pressure $p_{DE}=(w_0+\epsilon w_1)\rho_{DE}$ where $\epsilon$ is the ratio of LTB shear to LTB expansion.
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