Search Results - "Prettyman, T."

Extensive water ice within Ceres’ aqueously altered regolith: Evidence from nuclear spectroscopy by Prettyman, T. H., Yamashita, N., Toplis, M. J., McSween, H. Y., Schörghofer, N., Marchi, S., Feldman, W. C., Castillo-Rogez, J., Forni, O., Lawrence, D. J., Ammannito, E., Ehlmann, B. L., Sizemore, H. G., Joy, S. P., Polanskey, C. A., Rayman, M. D., Raymond, C. A., Russell, C. T.

“…The surface elemental composition of dwarf planet Ceres constrains its regolith ice content, aqueous alteration processes, and interior evolution. Using…”
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Dawn arrives at Ceres: Exploration of a small, volatile-rich world by Russell, C. T., Raymond, C. A., Ammannito, E., Buczkowski, D. L., De Santis, M. C., Hiesinger, H., Jaumann, R., Konopliv, A. S., McSween, H. Y., Nathues, A., Park, R. S., Pieters, C. M., Prettyman, T. H., McCord, T. B., McFadden, L. A., Mottola, S., Zuber, M. T., Joy, S. P., Polanskey, C., Rayman, M. D., Castillo-Rogez, J. C., Chi, P. J., Combe, J. P., Ermakov, A., Fu, R. R., Hoffmann, M., Jia, Y. D., King, S. D., Lawrence, D. J., Li, J.-Y., Marchi, S., Preusker, F., Roatsch, T., Ruesch, O., Schenk, P., Villarreal, M. N., Yamashita, N.

“…On 6 March 2015, Dawn arrived at Ceres to find a dark, desiccated surface punctuated by small, bright areas. Parts of Ceres' surface are heavily cratered, but…”
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Dawn at Vesta: Testing the Protoplanetary Paradigm by Russell, C. T., Raymond, C. A., Coradini, A., McSween, H. Y., Zuber, M. T., Nathues, A., De Sanctis, M. C., Jaumann, R., Konopliv, A. S., Preusker, F., Asmar, S. W., Park, R. S., Gaskell, R., Keller, H. U., Mottola, S., Roatsch, T., Scully, J. E. C., Smith, D. E., Tricarico, P., Toplis, M. J., Christensen, U. R., Feldman, W. C., Lawrence, D. J., McCoy, T. J., Prettyman, T. H., Reedy, R. C., Sykes, M. E., Titus, T. N.

“…The Dawn spacecraft targeted 4 Vesta, believed to be a remnant intact protoplanet from the earliest epoch of solar system formation, based on analyses of…”
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Ammoniated phyllosilicates with a likely outer Solar System origin on (1) Ceres by De Sanctis, M. C., Ammannito, E., Raponi, A., Marchi, S., McCord, T. B., McSween, H. Y., Capaccioni, F., Capria, M. T., Carrozzo, F. G., Ciarniello, M., Longobardo, A., Tosi, F., Fonte, S., Formisano, M., Frigeri, A., Giardino, M., Magni, G., Palomba, E., Turrini, D., Zambon, F., Combe, J.-P., Feldman, W., Jaumann, R., McFadden, L. A., Pieters, C. M., Prettyman, T., Toplis, M., Raymond, C. A., Russell, C. T.

“…Infrared spectra of (1) Ceres acquired at distances of 82,000 to 4,300 kilometres from the surface indicate widespread ammoniated phyllosilicates; the presence…”
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Elemental composition of the lunar surface: Analysis of gamma ray spectroscopy data from Lunar Prospector by Prettyman, T. H., Hagerty, J. J., Elphic, R. C., Feldman, W. C., Lawrence, D. J., McKinney, G. W., Vaniman, D. T.

“…Gamma ray spectroscopy data acquired by Lunar Prospector are used to determine global maps of the elemental composition of the lunar surface. Maps of the…”
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Vesta's Shape and Morphology by Jaumann, R., Williams, D. A., Buczkowski, D. L., Yingst, R. A., Preusker, F., Hiesinger, H., Schmedemann, N., Kneissl, T., Vincent, J. B., Blewett, D. T., Buratti, B. J., Carsenty, U., Denevi, B. W., De Sanctis, M. C., Garry, W. B., Keller, H. U., Kersten, E., Krohn, K., Li, J.-Y., Marchi, S., Matz, K. D., McCord, T. B., McSween, H. Y., Mest, S. C., Mittlefehldt, D. W., Mottola, S., Nathues, A., Neukum, G., O'Brien, D. P., Pieters, C. M., Prettyman, T. H., Raymond, C. A., Roatsch, T., Russell, C. T., Schenk, P., Schmidt, B. E., Scholten, F., Stephan, K., Sykes, M. V., Tricarico, P., Wagner, R., Zuber, M. T., Sierks, H.

“…Vesta's surface is characterized by abundant impact craters, some with preserved ejecta blankets, large troughs extending around the equatorial region,…”
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Chondritic models of 4 Vesta: Implications for geochemical and geophysical properties by Toplis, M. J., Mizzon, H., Monnereau, M., Forni, O., McSween, H. Y., Mittlefehldt, D. W., McCoy, T. J., Prettyman, T. H., De Sanctis, M. C., Raymond, C. A., Russell, C. T.

“…Simple mass‐balance and thermodynamic constraints are used to illustrate the potential geochemical and geophysical diversity of a fully differentiated…”
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An aqueously altered carbon-rich Ceres by Marchi, S., Raponi, A., Prettyman, T. H., De Sanctis, M. C., Castillo-Rogez, J., Raymond, C. A., Ammannito, E., Bowling, T., Ciarniello, M., Kaplan, H., Palomba, E., Russell, C. T., Vinogradoff, V., Yamashita, N.

“…The surface mineralogy of dwarf planet Ceres appears to be dominated by products of rock–fluid interactions, such as phyllosilicates—some of which are NH 4…”
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Pitted terrains on (1) Ceres and implications for shallow subsurface volatile distribution by Sizemore, H. G., Platz, T., Schorghofer, N., Prettyman, T. H., De Sanctis, M. C., Crown, D. A., Schmedemann, N., Neesemann, A., Kneissl, T., Marchi, S., Schenk, P. M., Bland, M. T., Schmidt, B. E., Hughson, K. H. G., Tosi, F., Zambon, F., Mest, S. C., Yingst, R. A., Williams, D. A., Russell, C. T., Raymond, C. A.

“…Prior to the arrival of the Dawn spacecraft at Ceres, the dwarf planet was anticipated to be ice‐rich. Searches for morphological features related to ice have…”
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Observations, Meteorites, and Models: A Preflight Assessment of the Composition and Formation of (16) Psyche by Elkins‐Tanton, L. T., Asphaug, E., Bell, J. F., Bercovici, H., Bills, B., Binzel, R., Bottke, W. F., Dibb, S., Lawrence, D. J., Marchi, S., McCoy, T. J., Oran, R., Park, R. S., Peplowski, P. N., Polanskey, C. A., Prettyman, T. H., Russell, C. T., Schaefer, L., Weiss, B. P., Wieczorek, M. A., Williams, D. A., Zuber, M. T.

“…Some years ago, the consensus was that asteroid (16) Psyche was almost entirely metal. New data on density, radar properties, and spectral signatures indicate…”
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Global Distribution of Neutrons from Mars: Results from Mars Odyssey by Feldman, W. C., Boynton, W. V., Tokar, R. L., Prettyman, T. H., Gasnault, O., Squyres, S. W., Elphic, R. C., Lawrence, D. J., Lawson, S. L., Maurice, S., McKinney, G. W., Moore, K. R., Reedy, R. C.

“…Global distributions of thermal, epithermal, and fast neutron fluxes have been mapped during late southern summer/northern winter using the Mars Odyssey…”
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Distribution of Hydrogen in the near Surface of Mars: Evidence for Subsurface Ice Deposits by Boynton, W. V., Feldman, W. C., Squyres, S. W., Prettyman, T. H., Brückner, J., Evans, L. G., Reedy, R. C., Starr, R., Arnold, J. R., Drake, D. M., Englert, P. A. J., Metzger, A. E., Mitrofanov, Igor, Trombka, J. I., d'Uston, C., Wänke, H., Gasnault, O., Hamara, D. K., Janes, D. M., Marcialis, R. L., Maurice, S., Mikheeva, I., Taylor, G. J., Tokar, R., Shinohara, C.

“…Using the Gamma-Ray Spectrometer on the Mars Odyssey, we have identified two regions near the poles that are enriched in hydrogen. The data indicate the…”
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Determining the Relative Cratering Ages of Regions of Psyche’s Surface by Marchi, S., Asphaug, E., Bell, J. F., Bottke, W. F., Jaumann, R., Park, R. S., Polanskey, C. A., Prettyman, T. H., Williams, D. A., Binzel, R., Oran, R., Weiss, B., Russell, C. T.

“…The study of the cratering history of asteroid (16) Psyche is one of the investigations to be performed by the NASA Psyche mission. A dedicated Relative Ages…”
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Global distribution of near-surface hydrogen on Mars by Feldman, W. C., Prettyman, T. H., Maurice, S., Plaut, J. J., Bish, D. L., Vaniman, D. T., Mellon, M. T., Metzger, A. E., Squyres, S. W., Karunatillake, S., Boynton, W. V., Elphic, R. C., Funsten, H. O., Lawrence, D. J., Tokar, R. L.

“…Neutron data observed using the Neutron Spectrometer aboard 2001 Mars Odyssey provide a lower limit to the global inventory of Martian water‐equivalent…”
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MCNPX benchmark for cosmic ray interactions with the Moon by McKinney, G. W., Lawrence, D. J., Prettyman, T. H., Elphic, R. C., Feldman, W. C., Hagerty, J. J.

“…The MCNPX radiation transport code is used to simulate cosmic ray interactions within the Moon. Accurate source, geometric, and physics models are developed to…”
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Impact-driven mobilization of deep crustal brines on dwarf planet Ceres by Raymond, C. A., Ermakov, A. I., Castillo-Rogez, J. C., Marchi, S., Johnson, B. C., Hesse, M. A., Scully, J. E. C., Buczkowski, D. L., Sizemore, H. G., Schenk, P. M., Nathues, A., Park, R. S., Prettyman, T. H., Quick, L. C., Keane, J. T., Rayman, M. D., Russell, C. T.

“…Ceres, the only dwarf planet in the inner Solar System, appears to be a relict ocean world. Data collected by NASA's Dawn spacecraft provided evidence that…”
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Correction to: Determining the Relative Cratering Ages of Regions of Psyche’s Surface by Marchi, S., Asphaug, E., Bell, J. F., Bottke, W. F., Jaumann, R., Park, R. S., Polanskey, C. A., Prettyman, T. H., Williams, D. A., Binzel, R., Oran, R., Weiss, B., Russell, C. T.

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Mars Odyssey neutron data: 1. Data processing and models of water-equivalent-hydrogen distribution by Maurice, S., Feldman, W., Diez, B., Gasnault, O., Lawrence, D. J., Pathare, A., Prettyman, T.

“…For more than 7 years, the Los Alamos built Mars Odyssey Neutron Spectrometer (MONS) has measured the neutron albedo from Mars in three consecutive energy…”
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Evidence for water ice near the lunar poles by Feldman, W. C., Maurice, S., Lawrence, D. J., Little, R. C., Lawson, S. L., Gasnault, O., Wiens, R. C., Barraclough, B. L., Elphic, R. C., Prettyman, T. H., Steinberg, J. T., Binder, A. B.

“…Improved versions of Lunar Prospector thermal and epithermal neutron data were studied to help discriminate between potential delivery and retention mechanisms…”
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Vesta, vestoids, and the HED meteorites: Interconnections and differences based on Dawn Framing Camera observations by Buratti, B. J., Dalba, P. A., Hicks, M. D., Reddy, V., Sykes, M. V., McCord, T. B., O'Brien, D. P., Pieters, C. M., Prettyman, T. H., McFadden, L. A., Nathues, Andreas, Le Corre, Lucille, Marchi, S., Raymond, Carol, Russell, Chris

“…The Framing Camera (FC) on the Dawn spacecraft provided the first view of 4 Vesta at sufficiently high spatial resolution to enable a detailed correlation of…”
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