Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-26T03:09:11.599Z Has data issue: false hasContentIssue false
  • English
  • Français

Deuterium Observations in our Galaxy - View A

Published online by Cambridge University Press:  25 May 2016

Jeffrey L. Linsky  and
Brian E. Wood
Jeffrey L. Linsky
Affiliation:
JILA, University of Colorado, &NIST, Boulder CO 80309-0440 USA
Brian E. Wood
Affiliation:
JILA, University of Colorado, &NIST, Boulder CO 80309-0440 USA

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Accurate measurements of the D/H ratio in our Galaxy provide critical tests of Galactic chemical evolution and constrain the primordial value of D/H. Very high quality ultraviolet spectra from the GHRS and STIS instruments on HST have been analyzed for lines of sight toward both early and late-type stars and hot white dwarfs. We will summarize the results that are being obtained for D/H along sightlines through the Local Interstellar Cloud (LIC) and other nearby warm clouds. All sightlines through the LIC are consistent with D/H = (1.53 ± 0.18) × 10−5. Whether or not significantly different values of D/H are present in other clouds within 100 pc of the Sun is not yet settled, but there is evidence that D/H is significantly lower in Orion (500 pc). We will describe the likely sources of systematic errors in determining D/H that must be understood and quantified when analyzing such ultraviolet spectra.

Type
3. Abundances of D, 3He and 4He
Information
Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 141 - 150
Copyright
Copyright © Astronomical Society of the Pacific 2000 

References

Baranov, V.B., & Malama, Y.G. 1995, J. Geophys. Res., 100, 14755 Google Scholar
Bluhm, H., Marggref, O., de Boer, K.S., Richter, P., Heber, U. 1999, A&A, 352, 287 Google Scholar
Dring, A., Linsky, J., Murthy, J., Henry, R.C., Moos, H., Vidal-Madjar, A., Audouze, J., Landsman, W. 1997, ApJ, 488, 760 Google Scholar
Gayley, K.G., Zank, G.P., Pauls, H.L., Frisch, P.C., & Welty, D.E. 1997, ApJ, 487, 259 Google Scholar
Gölz, M. et al. 1998, in Proc. IAU Colloq. 166, The Local Bubble and Beyond, eds. Breitschwerdt, D., Freyberg, M. J., & Trumper, J., p. 75 Google Scholar
Gry, C., Lemonon, L., Vidal-Madjar, A., Lemoine, M., & Ferlet, F. 1995, A&A, 302, 497 Google Scholar
Hebrard, G., Mallouris, C., Ferlet, R., Koester, D., Lemoine, M., Vidal-Madjar, A., & York, D. 1999, A&A, 350, 643 Google Scholar
Izmodenov, V.V., Lallement, R., & Malama, Y.G. 1999, A&A, 342, L13 Google Scholar
Jenkins, E.B., Tripp, T. M., Wozniak, P. R., Sofia, U. J., & Sonneborn, G. 1999, ApJ, 520, 182 Google Scholar
Lallement, R., & Bertin, P. 1992, A&A, 266, 479 Google Scholar
Landsman, W., Sahu, M., Bruhweiler, F.C., Gull, T.R., Barstow, M.A., Hubeny, I., & Holberg, J.B. 1999, poster presented at IAU Symp 198 Google Scholar
Lemoine, M. et al. 1999, New Astronomy, 4, 231 Google Scholar
Lemoine, M., Vidal-Madjar, A., Bertin, P., Ferlet, R., Gry, C., & Lallement, R. 1996, A&A, 308, 601 Google Scholar
Linsky, J.L. 1999, ApJ, 525, 776 Google Scholar
Linsky, J.L., Brown, A., Gayley, K., Diplas, A., Savage, B.D., Ayres, T.R., Landsman, W., Shore, S.N., & Heap, S.R. 1993, ApJ, 402, 694 Google Scholar
Linsky, J.L., Diplas, A., Wood, B.E., Brown, A., Ayres, T.R., & Savage, B.D. 1995, ApJ, 451, 335 Google Scholar
Linsky, J.L., & Wood, B.E. 1996, ApJ, 463, 254 Google Scholar
Müller, H.R., Zank, G.P., & Lipatov, A.S. 1999, to appear in J. Geophys. Res. Google Scholar
Piskunov, N., Wood, B.E., Linsky, J.L., Dempsey, R.C., & Ayres, T.R. 1997, ApJ, 474, 315 Google Scholar
Redfield, S. & Linsky, J.L. 2000, ApJ, to appear May 10 Google Scholar
Sahu, M.S., Landsman, W., Bruhweiler, F.C., Gull, T.R., Bowers, C.A., Lindler, D., Feggans, K., Barstow, M.A., Hubeny, I., & Holberg, J.B., 1999, ApJ, 523, L159 Google Scholar
Sonneborn, G., Jenkins, E.B., Tripp, T., Vidal-Madjar, A., Ferlet, R., & Sofia, U.J. 1999, poster presented at IAU Symp 198 Google Scholar
Tosi, M., Steigman, G., Matteucci, F., & Chiappini, C. 1998, ApJ, 498, 226 Google Scholar
Vidal-Madjar, A., Lemoine, M., Ferlet, R., Hébrard, G., Koester, D., Audouze, J., Cassé, M., Vangioni-Flam, E., & Webb, J. 1998, A&A, 338, 694 Google Scholar
Welty, D.E., Morton, D.C., & Hobbs, L.M. 1996, ApJS, 106, 533 CrossRefGoogle Scholar
Wood, B.E., Alexander, W.R., & Linsky, J.L. 1996, ApJ, 470, 1157 Google Scholar
Wood, B.E., & Linsky, J.L. 1998, ApJ, 492, 788 Google Scholar
Wood, B.E., Linsky, J.L., & Zank, G.P. 1999, submitted to ApJ Google Scholar
Wood, B.E., Müller, H.R., & Zank, G.P. 2000, in preparation Google Scholar
Zank, G.P. 1999, Space Sci. Rev., 89, 1 Google Scholar