What Is the Total Deuterium Abundance in the Local Galactic Disk

@article{Linsky2006WhatIT,
  title={What Is the Total Deuterium Abundance in the Local Galactic Disk},
  author={J. Linsky and B. Draine and H. Moos and E. Jenkins and B. Wood and Cristina Oliveira and W. Blair and S. Friedman and C. Gry and D. Knauth and J. Kruk and S. Lacour and N. Lehner and S. Redfield and J. Shull and G. Sonneborn and G. Williger},
  journal={The Astrophysical Journal},
  year={2006},
  volume={647},
  pages={1106-1124}
}
Analyses of spectra obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite, together with spectra from the Copernicus and interstellar medium absorption profile spectrograph (IMAPS) instruments, reveal an unexplained, very wide range in the observed deuterium/hydrogen (D/H) ratios for interstellar gas in the Galactic disk beyond the Local Bubble. We argue that spatial variations in the depletion of deuterium onto dust grains can explain these local variations in the observed… Expand
The total deuterium abundance in the local Galactic disk: decisions and implications
  • J. Linsky
  • Physics
  • Proceedings of the International Astronomical Union
  • 2009
Abstract Analyses of FUSE spacecraft spectra have provided measurements of D/H in the gas phase of the interstellar medium for many lines of sight extending to several kpc from the Sun. TheseExpand
The Galactic deuterium abundance and dust depletion: insights from an expanded Ti/H sample
The primordial abundance of deuterium (D/H) yields a measure of the density of baryons in the Universe and is an important complement to determinations from cosmic microwave background (CMB)Expand
D/H and Nearby Interstellar Cloud Structures
Abstract Analysis of UV spectra obtained with the HST, FUSE and other satellites provides a new understanding of the deuterium abundance in the local region of the galactic disk. The wide range ofExpand
FUSE deuterium observations: a strong case for galactic infall
Measurements of deuterium in the local interstellar medium have revealed large variations in D/H along different lines of sight. Moreover, recent far-ultraviolet spectroscopic explorer (FUSE)Expand
Gas-phase Deuterium Abundances, Near and Far
Deuterium abundances in gaseous media reveal information on the baryon density of the universe Ω b and the processing of chemical elements by stars in galaxies. By observing D in its atomic form inExpand
The deuterium abundance in the local interstellar medium
As the Galaxy evolves, the abundance of deuterium in the interstellar medium (ISM) decreases from its primordial value: deuterium is ‘astrated’. The deuterium astration factor f D, the ratio of theExpand
The Abundance of Deuterium in the Warm Neutral Medium of the Lower Galactic Halo
We use high-resolution ultraviolet spectra to obtain Milky Way interstellar column densities of H I, D I, O I, S II, Fe II, and P II toward the QSO HE 0226-4110 in the Galactic direction l = 253.4?Expand
New metallicity independent constraints of galactic infall from deuterium observations
Local deuterium observations have shown large variations over different lines of sight. However, it has been recently proposed that such variations can be explained by strong depletion of deuteriumExpand
(Un)true deuterium abundance in the Galactic disk
Abstract Deuterium has a special place in cosmology, nuclear astrophysics, and galactic chemical evolution, because of its unique property that it is only created in the big bang nucleosynthesisExpand
On the deuterium abundance and the importance of stellar mass loss in the interstellar and intergalactic medium
We quantify the gas-phase abundance of deuterium and fractional contribution of stellar mass loss to the gas in cosmological zoom-in simulations from the Feedback In Realistic Environments project.Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 119 REFERENCES
Deuterium Abundance in the Interstellar Gas of the Galactic Anticenter from the 327 MHz Line
The deuterium abundance in the primordial gas formed during the big bang is dependent on the baryon-to-photon ratio during nucleosynthesis. We report a measurement of the deuterium-to-hydrogen (D/H)Expand
Evidence of Correlated Titanium and Deuterium Depletion in the Galactic Interstellar Medium
Current measurements indicate that the deuterium abundance in diffuse interstellar gas varies spatially by a factor of ~4 among sight lines extending beyond the Local Bubble. One plausibleExpand
Deuterium Abundance toward WD 2211–495: Results from the FUSE Mission*
We present a deuterium abundance analysis of the line of sight toward the white dwarf WD 2211-495 observed with the Far Ultraviolet Spectroscopic Explorer (FUSE). Numerous interstellar lines areExpand
The Deuterium-to-Hydrogen Ratio in a Low-Metallicity Cloud Falling onto the Milky Way
Using Far Ultraviolet Spectroscopic Explorer (FUSE) and Hubble Space Telescope observations of the QSO PG 1259+593, we detect D I Lyman series absorption in high-velocity cloud Complex C, aExpand
THE HOMOGENEITY OF INTERSTELLAR OXYGEN IN THE GALACTIC DISK
We present an analysis of high-resolution Hubble Space Telescope Space Telescope Imaging Spectrograph (STIS) observations of Kr I λ1236 absorption in seven sight lines that probe a variety ofExpand
Deuterium astration in the local disc and beyond
Estimates of the interstellar deuterium abundance span a wide range of values. Until recently, it was customary to adopt the abundance of deuterium measured in the Local Bubble as representative ofExpand
Hubble Space Telescope Imaging Spectrograph Observations of the Hot White Dwarf in the Close Binary Feige 24
We obtained and analyzed two Hubble Space Telescope Imaging Spectrograph spectra of the white dwarf in the DA plus dMe binary Feige 24. The spectra, obtained at orbital quadratures, provide newExpand
Deuterium Abundance toward G191-B2B: Results from the FUSE Mission*
High-resolution spectra of the hot white dwarf G191-B2B, covering the wavelength region 905-1187 A ˚ , were obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE). These data were used inExpand
FUSE Determination of a Low Deuterium Abundance along an Extended Sight Line in the Galactic Disk
We present a study of the deuterium abundance along the extended sight line toward HD 90087 with the Far Ultraviolet Spectroscopic Explorer (FUSE). HD 90087 is a O9.5 III star located in the GalacticExpand
THE COSMOLOGICAL BARYON DENSITY FROM THE DEUTERIUM-TO-HYDROGEN RATIO IN QSO ABSORPTION SYSTEMS: D/H TOWARD Q1243+3047
We report the detection of deuterium absorption at redshift 2.525659 toward Q1243+3047. We describe improved methods to estimate the deuterium to hydrogen abundance ratio (D/H) in absorption systems,Expand
...
1
2
3
4
5
...