The upper bound to the primordial abundance of helium and the consistency of the hot big bang model

Keith A. Olive, Gary Steigman, Terry P. Walker

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Consistency of the primordial abundance of 4He with the predictions of big bang nucleosynthesis provides a key test of the standard model of cosmology. Recent calculations predict that the primordial mass fraction of 4He, Yp, should exceed 0.236. The helium abundances determined from the observations of 38 metal-poor extragalactic H II regions are used to infer a 95% CL statistical upper bound to Yp which, depending on the specific method employed to extrapolate the data, and/or the subsets of data used in 1, 2, 3, or 4 parameter fits, yields Yp ≤ 0.237-0.243.

Original languageEnglish (US)
Pages (from-to)L1-L4
JournalAstrophysical Journal
Volume380
Issue number1 PART 2
DOIs
StatePublished - Oct 10 1991

Keywords

  • Abundances
  • Cosmology
  • Early universe
  • Nebulae: H II regions

Fingerprint

Dive into the research topics of 'The upper bound to the primordial abundance of helium and the consistency of the hot big bang model'. Together they form a unique fingerprint.

Cite this