DETERMINING THE HUBBLE CONSTANT FROM HUBBLE PARAMETER MEASUREMENTS

We use 28 measurements of the Hubble parameter, H(z), at intermediate redshifts to determine the present-day Hubble constant H0 in four cosmological models. We measure , and Mpc−1 (1 errors) in the ΛCDM (spatially flat and non-flat), CDM, and φCDM models, respectively. These measured H0 values are m...

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Vydané v:The Astrophysical journal Ročník 835; číslo 1; s. 86 - 89
Hlavní autori: Chen, Yun, Kumar, Suresh, Ratra, Bharat
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Philadelphia The American Astronomical Society 20.01.2017
IOP Publishing
Institute of Physics (IOP)
Predmet:
Astronomical models
astronomy & astrophysics
ASTRONOMY AND ASTROPHYSICS
Astrophysics
Big Bang theory
Confidence limits
Cosmic microwave background
Cosmological models
cosmological parameters
Cosmology
dark energy
Hubble constant
Parameters
Statistical analysis
ISSN:0004-637X, 1538-4357, 1538-4357
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Popis
Shrnutí:We use 28 measurements of the Hubble parameter, H(z), at intermediate redshifts to determine the present-day Hubble constant H0 in four cosmological models. We measure , and Mpc−1 (1 errors) in the ΛCDM (spatially flat and non-flat), CDM, and φCDM models, respectively. These measured H0 values are more consistent with the lower values determined from recent data on the cosmic microwave background and baryon acoustic oscillations, as well as with the value found from a median statistical analysis of Huchra's compilation of H0 measurements, but include the higher local measurements of H0 within the 2 confidence limits.
Bibliografia:Galaxies and Cosmology
AAS01522
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
FG03-99ER41093
USDOE Office of Science (SC)
ISSN:0004-637X
1538-4357
1538-4357
DOI:10.3847/1538-4357/835/1/86