2008/04/30 by Hui Lin, Hao Cheng, Cheng Hao +5 · 1 citation
Physics and Astronomy · #Anisotropy #Astrophysics #Baryon #COSMIC cancer database #Complementarity (molecular biology) #Cosmic background radiation #Cosmic microwave background #Cosmology #Cosmology and Gravitation Theories #Dark energy #Galaxies: Formation, Evolution, Phenomena #Galaxy #Observational cosmology #Physics #Quantum mechanics #Radio Astronomy Observations and Technology #Shape of the universe #Theoretical physics #astro-ph
paper · pdf · doi:10.1142/s0217732309030217
published as Mod.Phys.Lett.A24:1699-1709, 2009 · 8 pages, 4 figures and 3 tables. Accepted for pubication in Modern Physics Letters A. Any comment welcome
arxiv created 2008/12/09 · openalex publication_date 2009/07/10 · arxiv updated 2014/11/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In this paper, we use a set of observational H(z) data (OHD) to constrain the ΛCDM cosmology. This data set can be derived from the differential ages of the passively evolving galaxies. Meanwhile, the [Formula: see text]-parameter, which describes the Baryonic Acoustic Oscillation (BAO) peak, and the newly measured value of the Cosmic Microwave Background (CMB) shift parameter [Formula: see text] are used to present combinational constraints on the same cosmology. The combinational constraints favor an accelerating flat universe while the flat ΛCDM cosmology is also analyzed in the same way. We obtain a result compatible with that by many other independent cosmological observations. We find that the observational H(z) data set is a complementarity to other cosmological probes.