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
arXiv:2404.06310v1 Announce Type: new
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.arXiv:2404.06310v1 Announce Type: new
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.