Gamma ray burst distances and the timescape cosmology
arXiv:1107.5596 · doi:10.1111/j.1365-2966.2011.19678.x
Abstract
Gamma ray bursts can potentially be used as distance indicators, providing the possibility of extending the Hubble diagram to redshifts ~7. Here we follow the analysis of Schaefer (2007), with the aim of distinguishing the timescape cosmological model from the \LambdaCDM model by means of the additional leverage provided by GRBs in the range 2 < z < 7. We find that the timescape model fits the GRB sample slightly better than the \LambdaCDM model, but that the systematic uncertainties are still too little understood to distinguish the models.
7 pages, 7 figures, revised version accepted for publication in MNRAS
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Cited by in corpus (8)
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- Conformally Friedmann-Lemaitre-Robertson-Walker cosmologies
- Timescape cosmology with radiation fluid
- Cosmological foundations revisited with Pantheon+
- Cosmic microwave background anisotropies in the timescape cosmology
- What is General Relativity?