Primordial Nucleosynthesis in the Precision Cosmology Era

@article{Steigman2007PrimordialNI,
  title={Primordial Nucleosynthesis in the Precision Cosmology Era},
  author={Gary Steigman},
  journal={Annual Review of Nuclear and Particle Science},
  year={2007},
  volume={57},
  pages={463-491}
}
  • G. Steigman
  • Published 31 October 2007
  • Physics
  • Annual Review of Nuclear and Particle Science
Primordial nucleosynthesis probes the Universe during its early evolution. Given the progress in exploring the constituents, structure, and recent evolution of the Universe, it is timely to review the status of Big Bang Nucleosynthesis (BBN) and confront its predictions, and the constraints that emerge from them, with those derived from independent observations of the Universe at much later epochs. Following an overview of the key physics that controls the synthesis of the elements in the early… 

Primordial nucleosynthesis: A cosmological probe

  • G. Steigman
  • Physics
    Proceedings of the International Astronomical Union
  • 2009
Abstract During its early evolution the Universe provided a laboratory to probe fundamental physics at high energies. Relics from those early epochs, such as the light elements synthesized during

Precision big bang nucleosynthesis with improved Helium-4 predictions

Primordial helium and the cosmic background radiation

The products of primordial nucleosynthesis, along with the cosmic microwave background (CMB) photons, are relics from the early evolution of the Universe whose observations probe the standard model

Primordial helium and the cosmic background radiation

The products of primordial nucleosynthesis, along with the cosmic microwave background (CMB) photons, are relics from the early evolution of the Universe whose observations probe the standard model

Constraints on sterile neutrinos lifetime from primordial nucleosynthesis

Big Bang Nucleosynthesis theory together with Hubble expansion law, Cosmic Microwave Background and Large-Scale structure formation constitute the basis of experimental confirmations of the Standard

Primordial Nucleosynthesis After WMAP

  • G. Steigman
  • Physics
    Proceedings of the International Astronomical Union
  • 2009
Abstract During its early evolution, the hot, dense Universe provided a laboratory for probing fundamental physics at high energies. By studying the relics from those early epochs, such as the light

Standard big bang nucleosynthesis and primordial CNO abundances after Planck

Primordial or big bang nucleosynthesis (BBN) is one of the three historical strong evidences for the big bang model. The recent results by the Planck satellite mission have slightly changed the

Primordial nucleosynthesis with varying fundamental constants

The success of primordial nucleosynthesis as a cornerstone of the hot Big Bang model has been limited by the long-standing lithium problem. Recent work presented a self-consistent perturbative

The Dawn of Chemistry

Within the precise cosmological framework provided by the Λ-cold dark matter model and standard Big Bang nucleosynthesis, the chemical evolution of the pregalactic gas can now be followed with
...

References

SHOWING 1-10 OF 43 REFERENCES

The cosmological density of baryons from observations of 3He+ in the Milky Way

TLDR
The earlier observations, when combined with recent theoretical developments in the understanding of light-element synthesis and destruction in stars, allow us to determine an upper limit for the primordial abundance of 3He relative to hydrogen: 3He/H = (1.1 ± 0.2) × 10-5.

The lithium content of the Galactic Halo stars

Thanks to the accurate determination of the baryon density of the universe by the recent cosmic microwave background experiments, updated predictions of the standard model of Big Bang nucleosynthesis

Light element evolution resulting from WMAP data

The recent determination of the baryon-to-photon ratio from Wilkinson Microwave Anisotropy Probe (WMAP) data by Spergel et al. allows one to fix, with unprecedented precision, the primordial

A probable stellar solution to the cosmological lithium discrepancy

TLDR
Spectroscopic observations of stars in the metal-poor globular cluster NGC 6397 reveal trends of atmospheric abundance with evolutionary stage for various elements that are reproduced by stellar-evolution models with diffusion and turbulent mixing and conclude that diffusion is predominantly responsible for the low apparent stellar lithium abundance in the atmospheres of old stars.

The Chemical Composition of the Small Magellanic Cloud H II Region NGC 346 and the Primordial Helium Abundance

Spectrophotometry in the λλ3400-7400 range is presented for 13 areas of the brightest H II region in the SMC: NGC 346. The observations were obtained at CTIO with the 4 m telescope. Based on these

Cosmic deuterium or a hydrogen interloper

Two groups have independently reported the possible detection of extragalactic deuterium in the absorption spectrum of the same high redshift, low metalicity QSO. Although the high value for the

BBN for pedestrians

The simplest, ‘standard’ model of Big Bang nucleosynthesis (SBBN) assumes three light neutrinos (Nν = 3) and no significant electron neutrino asymmetry ( asymmetry parameter ξe ≡ μe/kT, where μe is

The primordial lithium abundance

Lithium abundances in a selected sample of halo stars have been revised by using the new accurate IRFM effective temperatures by Alonso, Arribas & Mart´onez-Roger (1996a). From 41 plateau stars (Teff