Abstract
An accurate value of the D/H ratio in the local interstellar medium (LISM) and a better understanding of the D/H variations with position in the Galactic disk and halo are vitally important questions as they provide information on the primordial D/H ratio in the Galaxy at the time of the protosolar nebula, and the amount of astration and mixing in the Galaxy over time. Recent measurements have been obtained with UV spectrographs on FUSE, HST, and IMAPS using hot white dwarfs, OB stars, and late-type stars as background light sources against which to measure absorption by D and H in the interstellar medium along the lines of sight. Recent analyses of FUSE observations of seven white dwarfs and subdwarfs provide a weighted mean value of DIR = (1.52 ± 0.08) x 10—5(15.2 ± 0.8 ppm), consistent with the value of (1.50 ± 0.10) x 10-5(15.0 + 1.0 ppm) obtained from analysis of lines of sight toward nearby late-type stars. Both numbers refer to the ISM within about 100 pc of the Sun, which samples warm clouds located within the Local Bubble. Outside of the Local Bubble at distances of 200 to 500 pc, analyses of far-UV spectra obtained with the IMAPS instrument indicate a much wider range of D/H ratios between 0.8 to 2.2 ppm. This portion of the Galactic disk provides information on inhomogeneous astration in the Galaxy.
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References
Allen, M.M., Jenkins, E B, and Snow, T.P.: 1992, ‘Interstellar Absorption along the Line of Sight to θ Carinae using Copernicus Observations’, Astrophys. J. Suppl. 83, 261–272.
Beckers, J.M.: 1975, ‘A Search for Deuterium on the Sun’, Astrophys. J. 195, L43–L45.
Burles, S., Nollett, K.M., and Turner, M.S.: 2001, ‘Big Bang Nucleosynthesis Predictions for Precision Cosmology’, Astrophys. J. 552, L1–L5.
Chengalur, J.N., Braun, R., and Butler Burton, W.: 1997, ‘DI in the Outer Galaxy’, Astron. Astrophys. 318, L35–L38.
Ferlet, R., York, D.G., Vidal-Madjar, A., and Laurent, C.: 1980, ‘The Interstellar Medium on the y Cassiopeiae Line of Sight’, Astrophys. J. 242, 578–583.
Friedman, S.D., Howk, J.C., Chayer, P. Tripp, T.M., Hebrard, G., Andre, M., Oliveira, C., Jenkins, E.B., Moos, H.W., Oegerle, W.R., Sonneborn, G., Lamontagne, R., Sembach, K.R., and Vidal-Madjar, A.: 2002 ‘Deuterium and Oxygen Toward Feige 110: Results from the Far Ultraviolet Spectroscopic Explorer (FUSE) Mission’, Astrophys. J. Suppl. 83, 37–49.
Hébrard, G., Péquignot, D., Vidal-Madjar, A., Walsh, J. R., and Ferlet, R.: 2000, ‘Detection of Deuterium Balmer lines in the Orion Nebula’, Astron. Astrophys. 83, L79–L82.
Jenkins, E.B., Tripp, T.M., Wozniak, P.W., Sofia, U.J., and Sonneborn, G.: 1999, ‘Spatial Variability in the Ratio of Interstellar Atomic Deuterium to Hydrogen. I. Observations toward S Orionis by the Interstellar Medium Absorption Profile Spectrograph’, Astrophys. J. 520, 182–195.
Lallement, R., and Bertin, P.: 1992, ‘Northern-Hemisphere Observations of Nearby Interstellar Gas - Possible Detection of the Local Cloud’, Astron. Astrophys., 266, 479–485.
Lemoine, M.et al.: 2002, ‘Deuterium Abundance toward G191–B2B: Results from the Far Ultraviolet Spectroscopic Explorer (FUSE) Mission’, Astrophys. J. Suppl. 140, G191–B2.
Linsky, J.L.: 1998, ‘Deuterium Abundance in the Local ISM and Possible Spatial Variations’, Space Sci. Rev. 84, 285–296.
Linsky, J.L., and Wood, B.E.: 1996, ‘The α Centauri Line of Sight: D/H Ratio, Physical Properties of Local Interstellar Gas, and Measurement of Heated Hydrogen (the “Hydrogen Wall”) near the Heliopause’, Astrophys. J. 463, 254–270.
Linsky, J.L., Redfield, S., Wood, B.E., and Piskunov, N.: 2000, ‘The Three-Dimensional Structure of the Warm Local Interstellar Medium. I. Methodology’, Astrophys. J. 528, 756–766.
Meyer, D.: 2002, ‘CNO Abundances in the Diffuse Interstellar Medium’, in R. Ferlet et al.(eds.),Gaseous Matter in the Galaxies and Intergalactic Space XVIIth IAP Colloquium, pp. 135–140.
Moos, H.W. et al.: 2000, ‘Overview of the Far Ultraviolet Spectroscopic Explorer Mission’Astrophys. J 538, L1–L6.
Moos, H.W.et al.: 2002, ‘Abundances of Deuterium, Oxygen, and Nitrogen in the Local Interstellar Medium: Overview of First Results from the Far Ultraviolet Spectroscopic Explorer Mission’, Astrophys. J. Suppl. 140, 3–17.
O’Dell, C.R., Ferland, G.J., and Henney, W.J.: 2001, ‘Measurement and Interpretation of Deuterium-Line Emission in the Orion Nebula’,Astrophys. J. 556, 203–214.
O’Meara, J.M., Tytler, D., Kirkman, D., Suzuki, N., Prochaska, J., Lubin, D, Wolfe, A.M.: 2001, ‘The Deuterium to Hydrogen Abundance Ratio toward a Fourth QSO: HS 0105+1619’, Astrophys. J. 552, 718–730.
Redfield, S., and Linsky, J.L.,: 2000, ‘The Three-Dimensional Structure of the Warm Local Interstellar Medium. I. The Colorado Model of the Local Interstellar Cloud’,Astrophys. J. 534, 825–837.
Redfield, S., and Linsky, J.L.: 2001, ‘Microstructure of the Local Interstellar Cloud and the Identification of the Hyades Cloud’, Astrophys. J.551, 413–428.
Robert, F., Gautier, D., and Dubrulle, B.: 2000, ‘The Solar System D/H Ratio: Observations and Theories’, Space Sci. Rev. 92, 201–224.
Sahu, M.S., Landsman, W., Bruhweiler, F.C., Gull, T.R.,Bowers, C.A., Lindler, D.,Feggans, K., Barstow, M.A., Hubeny, I., and Holberg, J.B., 1999 ‘The D/H Ratio in Interstellar Gas toward G191–B2B’, Astrophys. J. 523, L159–L163.
Sfeir, D.M., Lallement, R., Crifo, F., and Welsh, B.Y.: 1999, ‘Mapping the Contours of the Local Bubble: Preliminary Results’, Astron. Astrophys. 346, 785–797.
Sahnow, D.J. et al.: 2000, ‘On-Orbit Performance of the Far Ultraviolet Spectroscopic Explorer Satellite’, Astrophys. J. 538, L7–L11.
Slavin, J.D., and Frisch, P.C.: 2002, ‘The Ionization of Nearby Interstellar Gas’, Astrophys. J. 565, 364–379.
Sonneborn, G., Tripp, T.M., Ferlet, R., Jenkins, E.B., Sofia, U.J., Vidal-Madjar, A., and Wozniak, P.R.: 2000, ‘Spatial Variability in the Ratio of Interstellar Atomic Deuterium to Hydrogen. II. Observations toward γ2 Velorum and ζ Puppis by the Interstellar Medium Absorption Profile Spectrograph’, Astrophys. J. 545, 277–289.
Sonneborn, G., Andre, M., Oliveira, C., Hebrard, G., Howk, J.C., Tripp, T.M., Chayer, P., Friedman, S.D., Kruk, J.W., Jenkins, E.B., Lemoine, M., Moos, H.W., Oegerle, W.R., Sembach, K.R., and Vidal-Madjar, A.: 2002, ‘Interstellar Deuterium, Nitrogen, and Oxygen Abundances Toward BD +28 4211: Results from the Far Ultraviolet Spectroscopic Explorer’ Spectrograph’, Astrophys. J. Suppl. 140, 51–66.
Tosi, M., Steigman, G. Matteucci, F. and Chiappini, C.:1998 ‘Is High Primordial Deuterium Consistent with Galactic Evolution?’, Astrophys. J. 498, 226–240.
Vidal-Madjar, A., and Ferlet, R.: 2002, ‘Hydrogen Column Density Evaluations Toward Capella: Consequences on the Interstellar Deuterium Abundance’, Astrophys. J. 571, L169–L172.
Vidal-Madjar, A., Lemoine, M., Ferlet, R., Hébrard, G., Koester, D., Audouze, J., Cassé, M.,Vangioni-Flam, E., and Webb, J.: 1998, ‘Detection of Spatial Variations in the (D/H) Ratio in the Local Interstellar Medium’, Astron. Astrophys. 338, 694–712.
Wood, B.E., Linsky, J.L., Müller, H.R., and Zank, G.P.: 2001, ‘Observational Estimates for the Mass-loss Rates of a Centauri and Proxima Centauri using Hubble Space Telescope Lya Spectra’, Astrophys. J. 547, L49–L52.
Wood, B.E., Müller, H.R., Zank, G.P., and Linsky, J.L.: 2002a, ‘Measured Mass Loss Rates in Solar-like Stars as a Function of Age and Activity’, Astrophys. J. 574, 412–425.
Wood, B.E., Redfield, S., Linsky, J.L., and Sahu, M.S.: 2002b, ‘Elemental Abundances and Ionization States within the Local Interstellar Cloud Based on HST and FUSE Observations of the Capella Line of Sight’, Astrophys. J., submitted.
Wright, C.M., van Dishoeck, E.F., Cox, P., Sidher, S.D., and Kessler, M.F.: 1999, ‘Infrared Space Observatory-Long Wavelength Spectrometer Detection of the 112 Micron HD J = 1 —> 0 Line toward the Orion Bar’, Astrophys. J. 515, L29–L33.
York, D.G.: 1983, ‘The Interstellar Medium near the Sun. III - Detailed Analysis of the Line of Sight to X Scorpii’, Astrophys. J. 264, 172–195.
Zank, G.P., Müller, H.-R., and Wood, B.E.: 2001, ‘The interaction of the Solar Wind and Stellar Winds with the Partially Ionized Interstellar Medium’, Physics of Plasmas 8, 2385–2393.
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Linsky, J.L. (2003). Atomic Deuterium/Hydrogen in the Galaxy. In: Kallenbach, R., Encrenaz, T., Geiss, J., Mauersberger, K., Owen, T.C., Robert, F. (eds) Solar System History from Isotopic Signatures of Volatile Elements. Space Sciences Series of ISSI, vol 16. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0145-8_4
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DOI: https://doi.org/10.1007/978-94-010-0145-8_4
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