Open AccessLight element evolution resulting from WMAP data
Author(s) -
Romano Donatella,
Tosi Monica,
Matteucci Francesca,
Chiappini Cristina
Publication year - 2003
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-2966.2003.07083.x
Subject(s) - physics , cmb cold spot , big bang nucleosynthesis , nucleosynthesis , astrophysics , metallicity , cosmic microwave background , stars , stellar nucleosynthesis , astronomy , stellar evolution , nuclear astrophysics , cosmology , anisotropy , quantum mechanics
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 abundances of the light elements D, 3 He, 4 He and 7 Li in the framework of the standard model of big bang nucleosynthesis. We adopt these primordial abundances and discuss the implications for Galactic chemical evolution, stellar evolution and nucleosynthesis of the light elements. The model predictions on D, 3 He and 4 He are in excellent agreement with the available data, while a significant depletion of 7 Li in low‐metallicity stars is required to reproduce the Spite plateau.