Zobrazeno 1 - 10 of 47 pro vyhledávání: '"R. S. Saunders"'
1
Water distribution in Martian permafrost regions from joint analysis of HEND (Mars Odyssey) and MOLA (Mars Global Surveyor) data
Autor: D. K. Hamara, I. G. Mitrofanov, David E. Smith, David Gilichinsky, William V. Boynton, Maria T. Zuber, N. E. Demidov, A. B. Sanin, Vladislav Tretyakov, Maxim Litvak, A. S. Kozyrev, R. S. Saunders
Publikováno v: Astronomy Letters. 34:713-723
We jointly analyze data from the High-Energy Neutron Detector (HEND) onboard the NASA Mars Odyssey spacecraft and data from the Mars Orbiter Laser Altimeter (MOLA) onboard the Mars Global Surveyor spacecraft. The former instrument measures the conten
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a92e8bfc1c27d7844acbd672eb92d41f
https://doi.org/10.1134/s1063773708100071
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2
Seasonal redistribution of water in the surficial Martian regolith: Results from the Mars Odyssey high-energy neutron detector (HEND)
Autor: Maxim Litvak, William V. Boynton, Alexander Rodin, E. V. Zabalueva, I. G. Mitrofanov, R. O. Kuzmin, R. S. Saunders
Publikováno v: Solar System Research. 41:89-102
The seasonal variation of neutron emissions from Mars in different spectral intervals measured by the HEND neutron detector for the entire Martian year are analyzed. Based on these data, the spatial variations of the neutron emissions from the planet
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f17905e6af7691eb17b418c451829f55
https://doi.org/10.1134/s0038094607020013
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3
Search for causes of the low epithermal neutron flux anomaly in the Arabia Terra region (Mars)
Autor: Alexander T. Basilevsky, R. S. Saunders, Stephanie C. Werner, Alexander Rodin, G. Neukum, A. S. Kozyrev, I. G. Mitrofanov, William V. Boynton, James W. Head, A. B. Sanin, Jouko Raitala
Publikováno v: Solar System Research. 40:355-374
A geologic analysis of 274 images acquired by the high-resolution MOC camera onboard the Mars Global Surveyor spacecraft within the Arabia Terra low neutron flux anomaly (which is indicative of an anom- alously high abundance of hydrogen: up to 16 wt
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db48e74f253246cca59f49d45978c521
https://doi.org/10.1134/s0038094606050017
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4
Comparison between polar regions of Mars from HEND/Odyssey data
Autor: Vladislav Tretyakov, N. J. Kelly, C. Shinohara, D. K. Hamara, M. L. Litvak, A. S. Kozyrev, R. S. Saunders, A. B. Sanin, I. G. Mitrofanov, William V. Boynton
Publikováno v: Icarus. 180:23-37
In this paper, we have analyzed neutron spectroscopy data gathered by the High Energy Neutron Detector (HEND) instrument onboard Mars Odyssey for comparison of polar regions. It is known that observation of the neutron albedo of Mars provides importa
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::34b387ed4b1481b1648845d0327fcb7f
https://doi.org/10.1016/j.icarus.2005.08.009
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5
Modeling of Martian seasonal caps from HEND/ODYSSEY data
Autor: R. S. Saunders, Vladislav Tretyakov, D. K. Hamara, William V. Boynton, A. B. Sanin, M. L. Litvak, I. G. Mitrofanov, C. Shinohara, A. S. Kozyrev
Publikováno v: Advances in Space Research. 36:2156-2161
In this paper, we have analyzed neutron spectroscopy data gathered by the high energy neutron detector instrument onboard Mars Odyssey in order to study the behavior of CO 2 condensed mass at the polar regions of Mars. It is known that observation of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8ff33206a574e8364d96650eaadf5b5
https://doi.org/10.1016/j.asr.2005.09.007
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6
Soil Water Content on Mars as Estimated from Neutron Measurements by the HEND Instrument Onboard the 2001 Mars Odyssey Spacecraft
Autor: A. B. Sanin, R. S. Saunders, I. G. Mitrofanov, V. Yu. Grin'kov, William V. Boynton, C. Shinohara, A. S. Kozyrev, Maxim Litvak, Vladislav Tretyakov, D. K. Hamara
Publikováno v: Solar System Research. 38:253-257
We present the results of 20 months of observations of Mars by the Russian HEND instrument onboard the NASA 2001 Mars Odyssey spacecraft. We show that there are two extended subpolar regions with a soil water content of several tens of percent in the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c0d85308e673fa7d152ae35837027f63
https://doi.org/10.1023/b:sols.0000037461.70809.45
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7
Regions of Potential Existence of Free Water (Ice) in the Near-Surface Martian Ground: Results from the Mars Odyssey High-Energy Neutron Detector (HEND)
Autor: William V. Boynton, E. V. Zabalueva, I. G. Mitrofanov, R. O. Kuzmin, Maxim Litvak, R. S. Saunders
Publikováno v: Solar System Research. 38:1-11
We report results of the analysis of the data on global mapping of neutron fluxes from the Martian surface, which have been obtained during the first ten months of measurements carried out by the Russian high-energy neutron detector HEND mounted aboa
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a286400a0299633249ed840c4439d657
https://doi.org/10.1023/b:sols.0000015150.61420.5b
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8
2001 Mars Odyssey Mission Summary
Autor: Thomas W. Thompson, Jeffrey J. Plaut, Robert A. Mase, M. R. Landano, C. Kloss, G. D. Badhwar, Raymond E. Arvidson, David A. Spencer, W. P. Sidney, R. G. Gibbs, M. A. Meyer, Philip R. Christensen, R. S. Saunders, Francis A. Cucinotta, W. C. Feldman, I. G. Mitrofanov, G. D. Pace, C. J. Zeitlin, William V. Boynton, G. W. Mcsmith
Publikováno v: Space Science Reviews. 110:1-36
The 2001 Mars Odyssey spacecraft, now in orbit at Mars, will observe the Martian surface at infrared and visible wavelengths to determine surface mineralogy and morphology, acquire global gamma ray and neutron observations for a full Martian year, an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::35c3d3979b1d2a1fed96e93df135b408
https://doi.org/10.1023/b:spac.0000021006.84299.18
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9
CO 2 Snow Depth and Subsurface Water-Ice Abundance in the Northern Hemisphere of Mars
Autor: A. S. Kozyrev, C. Shinohara, A. B. Sanin, R. S. Saunders, D. M. Drake, David E. Smith, D. K. Hamara, Vladislav Tretyakov, William V. Boynton, M. L. Litvak, I. G. Mitrofanov, Maria T. Zuber
Publikováno v: Science. 300:2081-2084
Observations of seasonal variations of neutron flux from the high-energy neutron detector (HEND) on Mars Odyssey combined with direct measurements of the thickness of condensed carbon dioxide by the Mars Orbiter Laser Altimeter (MOLA) on Mars Global
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85b42b54e27d0e78ff1955c6945ddf2b
https://doi.org/10.1126/science.1084350
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10
[Untitled]
Autor: I. G. Mitrofanov, R. S. Saunders, James W. Head, William V. Boynton, Maxim Litvak, Alexander T. Basilevsky
Publikováno v: Solar System Research. 37:387-397
Analysis of the distribution of the epithermal and fast neutron fluxes from the Martian surface within the ±60° latitude zone measured by the High-Energy Neutron Detector (HEND) from mid-February through mid-June 2002 has revealed regional neutron-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::80543b1f646ce6bc3a2ddb3dd6f39853
https://doi.org/10.1023/a:1026022912786
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