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 on dark energy from current observations of BAO, OHD and H 0 , and find hints of dynamical behavior of dark energy. In particular, a dynamical dark energy model whose equation of state crosses −1 is favored by observations. We also find that the Universe has started accele...

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Veröffentlicht in:Research in astronomy and astrophysics 2024-06, Vol.24 (6), p.65002
Hauptverfasser: Wang, Xiaoma, Gu, Gan, Mu, Xiaoyong, Yuan, Shuo, Zhao, Gong-Bo
Format: Artikel
Sprache:eng
Schlagworte:
(cosmology:) dark energy
Cosmology
cosmology: observations
Dark energy
Distance measurement
Equations of state
Red shift
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Zusammenfassung:We extract key information on dark energy from current observations of BAO, OHD and H 0 , and find hints of dynamical behavior of dark energy. In particular, a dynamical dark energy model whose equation of state crosses −1 is favored by observations. We also find that the Universe has started accelerating at a lower redshift than expected.
ISSN:1674-4527
2397-6209
DOI:10.1088/1674-4527/ad3f58