Correcting a statistical artifact in the estimation of the Hubble; constant based on Type Ia Supernovae results in a change in estimate; of 1.2%

JH Petersen; KK Holst; Esben Budtz-Jørgensen

doi:10.1088/0004-637X/723/1/966

Correcting a statistical artifact in the estimation of the Hubble; constant based on Type Ia Supernovae results in a change in estimate; of 1.2%

JH Petersen, KK Holst, Esben Budtz-Jørgensen

Biostatistisk afdeling

1 Citationer (Scopus)

Abstract

The Hubble constant enters big bang cosmology by quantifying the expansion rate of the universe. Existing statistical
methods used to estimate Hubble’s constant only partially take into account random measurement errors. As
a consequence, estimates of Hubble’s constant are statistically inconsistent and systematically too low. Using the
simplest of the existing methods to illustrate the problem, we show that the change in estimate is 1.2%. The more
advanced techniques suffer from the same deficiency

Originalsprog	Engelsk
Tidsskrift	Astrophysical Journal Letters
Vol/bind	723
Udgave nummer	1
Sider (fra-til)	966-968
Antal sider	3
DOI	https://doi.org/10.1088/0004-637X/723/1/966
Status	Udgivet - 1 nov. 2010

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10.1088/0004-637X/723/1/966

Citationsformater

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title = "Correcting a statistical artifact in the estimation of the Hubble; constant based on Type Ia Supernovae results in a change in estimate; of 1.2%",

abstract = "The Hubble constant enters big bang cosmology by quantifying the expansion rate of the universe. Existing statisticalmethods used to estimate Hubble{\textquoteright}s constant only partially take into account random measurement errors. Asa consequence, estimates of Hubble{\textquoteright}s constant are statistically inconsistent and systematically too low. Using thesimplest of the existing methods to illustrate the problem, we show that the change in estimate is 1.2%. The moreadvanced techniques suffer from the same deficiency",

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AU - Budtz-Jørgensen, Esben

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N2 - The Hubble constant enters big bang cosmology by quantifying the expansion rate of the universe. Existing statisticalmethods used to estimate Hubble’s constant only partially take into account random measurement errors. Asa consequence, estimates of Hubble’s constant are statistically inconsistent and systematically too low. Using thesimplest of the existing methods to illustrate the problem, we show that the change in estimate is 1.2%. The moreadvanced techniques suffer from the same deficiency

AB - The Hubble constant enters big bang cosmology by quantifying the expansion rate of the universe. Existing statisticalmethods used to estimate Hubble’s constant only partially take into account random measurement errors. Asa consequence, estimates of Hubble’s constant are statistically inconsistent and systematically too low. Using thesimplest of the existing methods to illustrate the problem, we show that the change in estimate is 1.2%. The moreadvanced techniques suffer from the same deficiency

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DO - 10.1088/0004-637X/723/1/966

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JO - Astrophysical Journal

JF - Astrophysical Journal

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Correcting a statistical artifact in the estimation of the Hubble; constant based on Type Ia Supernovae results in a change in estimate; of 1.2%

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