Dynamical dark energy in light of cosmic distance measurements II: a study using current observations

Dynamical dark energy in light of cosmic distance measurements II: a study using current observations

We extract key information of dark energy from current observations of BAO, OHD and \(H_0\), and find hints of dynamical behaviour of dark energy. In particular, a dynamical dark energy model whose equation of state crosses \(-1\) is favoured by observations. We also find that the Universe has start...

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Veröffentlicht in:arXiv.org 2024-04
Hauptverfasser: Wang, Xiaoma, Gu, Gan, Mu, Xiaoyong, Yuan, Shuo, Gong-Bo, Zhao
Format: Artikel
Sprache:eng
Schlagworte:
Dark energy
Distance measurement
Equations of state
Physics - Cosmology and Nongalactic Astrophysics
Red shift
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Zusammenfassung:We extract key information of dark energy from current observations of BAO, OHD and \(H_0\), and find hints of dynamical behaviour of dark energy. In particular, a dynamical dark energy model whose equation of state crosses \(-1\) is favoured by observations. We also find that the Universe has started accelerating at a lower redshift than expected.
ISSN:2331-8422
DOI:10.48550/arxiv.2404.06310