Search Results - "Nier, A. O."

Refine Results
  1. 1

    The development of a high resolution mass spectrometer: a reminiscence by Nier, Alfred O.

    “…This article is a review of the events leading to the development of the double-focusing tandem mass spectrometer system, which is sometimes called the…”
    Get full text
    Journal Article
  2. 2

    Search for Organic and Volatile Inorganic Compounds in Two Surface Samples from the Chryse Planitia Region of Mars by Biemann, K., Oro, J., Toulmin, P., Orgel, L. E., Nier, A. O., Anderson, D. M., Simmonds, P. G., Flory, D., Diaz, A. V., Rushneck, D. R., Biller, J. A.

    “…Two surface samples collected from the Chryse Planitia region of Mars were heated to temperatures up to 500°C, and the volatiles that they evolved were…”
    Get full text
    Journal Article
  3. 3

    Structure of the Neutral Upper Atmosphere of Mars: Results from Viking 1 and Viking 2 by Nier, A. O., McElroy, M. B.

    “…Neutral mass spectrometers carried on the aeroshells of Viking 1 and Viking 2 indicate that carbon dioxide is the major constituent of the martian atmosphere…”
    Get full text
    Journal Article
  4. 4

    Composition and Structure of the Martian Atmosphere: Preliminary Results from Viking 1 by Nier, A. O., Hanson, W. B., Seiff, A., McElroy, M. B., Spencer, N. W., Duckett, R. J., Knight, T. C. D., Cook, W. S.

    “…Results from the aeroshell-mounted neutral mass spectrometer on Viking 1 indicate that the upper atmosphere of Mars is composed mainly of CO$_{2}$ with trace…”
    Get full text
    Journal Article
  5. 5

    Composition and Structure of the Martian Upper Atmosphere: Analysis of Results from Viking by McElroy, M. B., Kong, T. Y., Yung, Y. L., Nier, A. O.

    “…Densities for carbon dioxide measured by the upper atmospheric mass spectrometers on Viking 1 and Viking 2 are analyzed to yield height profiles for the…”
    Get full text
    Journal Article
  6. 6

    Venus Thermosphere: In situ Composition Measurements, the Temperature Profile, and the Homopause Altitude by von Zahn, U., Krankowsky, D., Mauersberger, K., Nier, A. O., Hunten, D. M.

    “…The neutral mass spectrometer on board the Pioneer Venus multiprobe bus measured composition and structural parameters of the dayside Venus upper atmosphere on…”
    Get full text
    Journal Article
  7. 7

    Isotopic Composition of the Martian Atmosphere by Nier, Alfred O., McElroy, Michael B., Yung, Yuk Ling

    “…Results from the neutral mass spectrometer carried on the aeroshell of Viking 1 show evidence for NO in the upper atmosphere of Mars and indicate that the…”
    Get full text
    Journal Article
  8. 8

    An asteroidal breccia: The anatomy of a cluster IDP by Thomas, K.L., Blanford, G.E., Clemett, S.J., Flynn, G.J., Keller, L.P., Klöck, W., Maechling, C.R., Mc Kay, D.S., Messenger, S., Nier, A.O., Schlutter, D.J., Sutton, S.R., Warren, J.L., Zare, R.N.

    Published in Geochimica et cosmochimica acta (01-07-1995)
    “…We report results of a consortium study of a large interplanetary dust particle known as cluster L2008#5. This cluster is composed of fifty-three fragments (>5…”
    Get full text
    Journal Article
  9. 9
  10. 10
  11. 11
  12. 12

    Isotopic Composition of Nitrogen: Implications for the Past History of Mars' Atmosphere by McElroy, Michael B., Yung, Yuk Ling, Nier, Alfred O.

    “…Models are presented for the past history of nitrogen on Mars based on Viking measurements showing that the atmosphere is enriched in $^{15}$N. The enrichment…”
    Get full text
    Journal Article
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20