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[1203.4479] Local and non-local measures of acceleration in cosmology - 0 views

arxiv.org/1203.4479

shared by Phil Bull on 12 Apr 12 - No Cached

Phil Bull on 12 Apr 12

As soon as you move away from a perfectly homogeneous and isotropic cosmological model, what is meant by the "acceleration" of spacetime becomes ambiguous. It's important to be clear on what type of acceleration is being considered in any given observational or theoretical study, since different types can have very different cosmological implications.

<div class="cArrow"> </div><div class="cContentInner">As soon as you move away from a perfectly homogeneous and isotropic cosmological model, what is meant by the "acceleration" of spacetime becomes ambiguous. It's important to be clear on what type of acceleration is being considered in any given observational or theoretical study, since different types can have very different cosmological implications.</div>

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[1207.1286] Do stochastic inhomogeneities affect dark-energy precision measurements? - 1 views

arxiv.org/1207.1286

shared by Phil Bull on 06 Jul 12 - No Cached

Phil Bull on 06 Jul 12

Calculation to 2nd order of the effects of inhomogeneities on averaged observables.

<div class="cArrow"> </div><div class="cContentInner">Calculation to 2nd order of the effects of inhomogeneities on averaged observables.</div>

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