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The acceleration of the universe and the physics behind it

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arxiv astro-ph/0605313 v1 pith:XN7WWGAY submitted 2006-05-12 astro-ph gr-qchep-ph

classification astro-phgr-qchep-ph
keywords accelerationclassesdiscussfourmodelsobservationsphysicsuniverse
verification ladder T0 review T1 audit T2 compute T3 formal
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Using a general classification of dark enegy models in four classes, we discuss the complementarity of cosmological observations to tackle down the physics beyond the acceleration of our universe. We discuss the tests distinguishing the four classes and then focus on the dynamics of the perturbations in the Newtonian regime. We also exhibit explicitely models that have identical predictions for a subset of observations.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Late Time Phenomena in $f(T,\mathcal{T})$ Gravity Framework: Role of $H_0$ Priors

    gr-qc 2024-11 conditional novelty 4.0 of 10

    An f(T,T) gravity model fitted to Pantheon+, BAO, and cosmic chronometer data yields a range of H0 posteriors that track the input priors, and predicts a growth rate about 9-11% below ΛCDM for two data combinations.

  2. Dark energy and cosmic acceleration

    astro-ph.CO 2025-02 unverdicted

    A review chapter summarizing the history, theory, and current observations of dark energy, presenting no new research results.

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