Deuterium abundances

Abstract

We discuss the measurements of deuterium abundances in high redshift quasar absorbers, in the solar system and in the interstellar medium. We present new results that indicate spatial variations of the deuterium abundance in the interstellar medium at the level of 50% over scales possibly as small as 10 pc, and discuss plausible causes for the origin of these variations.

19 pages, 1 figure. To appear in New Astronomy, for the David N. Schramm memorial volume

References in corpus (11)

• The Deuterium Abundance Towards Q1937-1009
• The Deuterium Abundance Towards Q1009+2956
• The Definitive Abundance of Interstellar Oxygen
• Big-bang Nucleosynthesis Enters the Precision Era
• The Abundance of Interstellar Nitrogen
• A High Deuterium Abundance at z=0.7
• IMAPS Observations of Interstellar Neutral Argon and the Implications for Partially Ionized Gas
• The Deuterium Abundance at z=0.701 towards QSO 1718+4807
• The Neutral Hydrogen Column Density towards Q1937--1009 from the Unabsorbed Intrinsic Continuum in the Lyman-$\alpha$ Forest
• Light Element Abundances From z=0 To z=5
• Star Formation Histories versus Redshift : Consequences for Overall Metallicity and Deuterium Destruction

Cited by in corpus (26)

• Big-Bang Nucleosynthesis Predictions for Precision Cosmology
• The cosmological baryon density from the deuterium to hydrogen ratio towards QSO absorption systems: D/H towards Q1243+3047
• Review of Big Bang Nucleosynthesis and Primordial Abundances
• Abundances of Deuterium, Oxygen, and Nitrogen in the Local Interstellar Medium: Overview of First Results from the Far Ultraviolet Spectroscopic Explorer Mission
• Two New Low Galactic D/H Measurements from FUSE
• The Deuterium-to-Hydrogen Ratio in a Low-Metallicity Cloud Falling onto the Milky Way
• The deuterium-to-oxygen ratio in the interstellar medium
• Spatial Variability in the Ratio of Interstellar Atomic Deuterium to Hydrogen. II. Observations toward Gamma2 Velorum and Zeta Puppis by the Interstellar Medium Absorption Profile Spectrograph
• From First Stars to the Spite Plateau: a Possible Reconciliation of Halo Stars Observations with Predictions from Big Bang Nucleosynthesis
• Evolution of Deuterium, 3He and 4He in the Galaxy
• Deuterium astration in the local disc and beyond
• Abundances of Deuterium, Nitrogen, and Oxygen toward HZ 43A: Results from the FUSE Mission
• Deuterated molecular hydrogen in the Galactic ISM. New observations along seven translucent sightlines
• Absorption-Line Systems and Galaxies in Front of the Second Brightest Quasar, PHL 1811
• FUSE determination of a low deuterium abundance along an extended sight line in the Galactic disk
• Deuterated hydrogen chemistry: Partition functions, Equilibrium constants and Transition intensities for the H3+ system
• Tiny-Scale Molecular Structures in the Magellanic Clouds (Part 1)
• FUSE Observations of the HD Molecule toward HD 73882
• Deuterium toward the WD0621-376 sight line: Results from the Far Ultraviolet Spectroscopic Explorer (FUSE) Mission
• Variations in the D/H ratio of extended sightlines from FUSE observations
• The D/H Ratio in the Interstellar Medium toward the White Dwarf PG0038+199
• The Deuterium, Oxygen, and Nitrogen Abundance Toward LSE 44
• Deuterium at high redshift: primordial or evolved ?
• Stochastic processes, galactic star formation, and chemical evolution. Effects of accretion, stripping, and collisions in multiphase multi-zone models
• Cosmological History of Stars and Metals
• Modelling the chemical evolution of the Milky Way