Documentation scienceplus.abes.fr version Bêta

À propos de : Connecting the primordial and Galactic deuterium abundances        

AttributsValeurs
type
Is Part Of
Subject
Title
  • Connecting the primordial and Galactic deuterium abundances
has manifestation of work
related by
Author
Abstract
  • The deuterium abundances inferred from observations of the interstellar medium (ISM) within 1-2 kpc of the Sun range over a factor of 3 and the corresponding oxygen abundances show an even larger dispersion. While the lower D (and O) abundances likely result from depletion on to dust, the higher D abundances are consistent with the big bang nucleosynthesis-predicted primordial D abundance and chemical evolution models of the Galaxy with infall of primordial or nearly primordial material. The large ranges in deuterium and oxygen abundances suggest that the effects of depletion and/or infall have not been homogenized in the local ISM.
article type
is part of this journal



Alternative Linked Data Documents: ODE     Content Formats:       RDF       ODATA       Microdata