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arXiv · 2404.06310

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

Xiaoma Wang·Gan Gu·Xiaoyong Mu·Shuo Yuan·Gong-Bo Zhao
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Abstract

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.

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Xiaoma Wang, Gan Gu, Xiaoyong Mu, Shuo Yuan, Gong-Bo Zhao. 2024-04-09. Dynamical dark energy in light of cosmic distance measurements II: a study using current observations. https://doi.org/10.1088/1674-4527/ad3f58

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