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A cosmic vector for dark energy

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arxiv 0801.1486 v2 pith:UNDHSXKQ submitted 2008-01-09 astro-ph gr-qchep-ph

Jose Beltran Jimenez , Antonio L. Maroto This is my paper · ORCID
classification astro-phgr-qchep-ph
keywords cosmologicalcosmicparametersuniversevectorableacceleratedaddition
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In this work we show that the presence of a vector field on cosmological scales could explain the present phase of accelerated expansion of the universe. The proposed theory contains no dimensional parameters nor potential terms and does not require unnatural initial conditions in the early universe, thus avoiding the so called cosmic coincidence problem. In addition, it fits the data from high-redshift supernovae with excellent precision, making definite predictions for cosmological parameters. Upcoming observations will be able to clearly discriminate this model from standard cosmology with cosmological constant.

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Forward citations

Cited by 4 Pith papers

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

  1. Shapes and orientations of massive halos in the statistically anisotropic universe

    astro-ph.CO 2025-05 conditional novelty 6.0 of 10

    Quadrupolar statistical anisotropy in initial conditions leaves cluster shapes unchanged but aligns the major axes of massive halos, more strongly for higher mass.

  2. Observational constraints on vector-like dark energy

    astro-ph.CO 2025-02 conditional novelty 6.0 of 10

    Pantheon and H(z) data force the cosmic triad vector dark energy model to sit very close to the LambdaCDM limit.

  3. New generalization of the Barboza-Alcaniz parametrization of Dark energy

    gr-qc 2026-07 reject novelty 4.0 of 10

    A generalized Barboza-Alcaniz dark-energy parametrization with a free exponent n is fit to cosmological data, but the model analyzed does not actually resolve the future-time problem it was designed to fix.

  4. Cosmological implications of Bumblebee theory on an FLRW background

    gr-qc 2025-12 unverdicted novelty 3.0 of 10

    Bumblebee theory on an FLRW background yields a cosmological model whose single free parameter is fitted to supernovae observations, producing deceleration and dark energy behaviors that are compared to Lambda-CDM.

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