Search Results - "METZGER, A. E"

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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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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Composition and structure of the Martian surface at high southern latitudes from neutron spectroscopy by Prettyman, T. H., Feldman, W. C., Mellon, M. T., McKinney, G. W., Boynton, W. V., Karunatillake, S., Lawrence, D. J., Maurice, S., Metzger, A. E., Murphy, J. R., Squyres, S. W., Starr, R. D., Tokar, R. L.

“…Neutron spectroscopy data acquired by Mars Odyssey are analyzed to determine the abundance and depth of near‐surface water ice as a function of latitude in the…”
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Mars' South Polar Ar Enhancement: A Tracer for South Polar Seasonal Meridional Mixing by Sprague, A. L., Boynton, W. V., Kerry, K. E., Janes, D. M., Hunten, D. M., Kim, K. J., Reedy, R. C., Metzger, A. E.

“…The gamma ray spectrometer on the Mars Odyssey spacecraft measured an enhancement of atmospheric argon over southern high latitudes during autumn followed by…”
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Concentration of H, Si, Cl, K, Fe, and Th in the low- and mid-latitude regions of Mars by Boynton, W. V., Taylor, G. J., Evans, L. G., Reedy, R. C., Starr, R., Janes, D. M., Kerry, K. E., Drake, D. M., Kim, K. J., Williams, R. M. S., Crombie, M. K., Dohm, J. M., Baker, V., Metzger, A. E., Karunatillake, S., Keller, J. M., Newsom, H. E., Arnold, J. R., Brückner, J., Englert, P. A. J., Gasnault, O., Sprague, A. L., Mitrofanov, I., Squyres, S. W., Trombka, J. I., d'Uston, L., Wänke, H., Hamara, D. K.

“…We report maps of the concentrations of H, Si, Cl, K, Fe, and Th as determined by the Gamma Ray Spectrometer (GRS) on board the 2001 Mars Odyssey Mission for…”
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Mars' South Polar Ar Enhancement: A Tracer for South Polar Seasonal Meridional Mixing by Sprague, A. L., Boynton, W. V., Kerry, K. E., Janes, D. M., Hunten, D. M., Kim, K. J., Reedy, R. C., Metzger, A. E.

“…The gamma ray spectrometer on the Mars Odyssey spacecraft measured an enhancement of atmospheric argon over southern high latitudes during autumn followed by…”
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The Mars Odyssey Gamma-Ray Spectrometer Instrument Suite by Boynton, W V, Feldman, W C, Mitrofanov, I G, Evans, L G, Reedy, R C, Squyres, S W, Starr, R, Trombka, JI, d'Uston, C, Arnold, J R, Englert, PAJ, Metzger, A E, Waenke, H, Brueckner, J, Drake, D M, Shinohara, C, Fellows, C, Hamara, D K, Harshman, K, Kerry, K, Turner, C, Ward, M, Barthe, H, Fuller, K R, Storms, SA, Thornton, G W, Longmire, J L, Litvak, M L, Ton'chev, A K

“…The Mars Odyssey Gamma-Ray Spectrometer is a suite of three different instruments, a gamma subsystem (GS), a neutron spectrometer, and a high-energy neutron…”
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Lunar Surface Radioactivity: Preliminary Results of the Apollo 15 and Apollo 16 Gamma-Ray Spectrometer Experiments by Metzger, A. E., Trombka, J. I., Peterson, L. E., Reedy, R. C., Arnold, J. R.

“…Gamma-ray spectrometers on the Apollo 15 and Apollo 16 missions have been used to map the moon's radioactivity over 20 percent of its surface. The highest…”
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Real relief by Metzger, E A

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Composition and structure of the Martian surface at high southern latitudes from neutron spectroscopy by PRETTYMAN, T. H, FELDMAN, W. C, SQUYRES, S. W, STARR, R. D, TOKAR, R. L, MELLON, M. T, MCKINNEY, G. W, BOYNTON, W. V, KARUNATILLAKE, S, LAWRENCE, D. J, MAURICE, S, METZGER, A. E, MURPHY, J. R

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Global distribution of near-surface hydrogen on Mars by FELDMAN, W. C, PRETTYMAN, T. H, BOYNTON, W. V, ELPHIC, R. C, FUNSTEN, H. O, LAWRENCE, D. J, TOKAR, R. L, MAURICE, S, PLAUT, J. J, BISH, D. L, VANIMAN, D. T, MELLON, M. T, METZGER, A. E, SQUYRES, S. W, KARUNATILLAKE, S

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Chemical Mapping of Planetary Surfaces by Haines, E. L., Arnold, J. R., Metzger, A. E.

“…Two instruments, the gamma-ray spectrometer and the X-ray fluorescence spectrometer, are uniquely suited to the chemical mapping of planetary surfaces from…”
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High-Energy Proton Radiation Damage of High-Purity Germanium Detectors by Pehl, Richard H., Varnell, Larry S., Metzger, Albert E.

“…Motivated by their applicability to gamma-ray spectroscopy experiments in space, quantitative studies of radiation damage effects in high-purity germanium…”
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Concentration of H, Si, Cl, K, Fe, and Th in the low-and mid-latitude regions of Mars by BOYNTON, W. V, TAYLOR, G. J, CROMBIE, M. K, DOHM, J. M, BAKER, V, METZGER, A. E, KARUNATILLAKE, S, KELLER, J. M, NEWSOM, H. E, ARNOLD, J. R, BRÜCKNER, J, ENGLERT, P. A. J, EVANS, L. G, GASNAULT, O, SPRAGUE, A. L, MITROFANOV, I, SQUYRES, S. W, TROMBKA, J. I, D'USTON, L, WÄNKE, H, HAMARA, D. K, REEDY, R. C, STARR, R, JANES, D. M, KERRY, K. E, DRAKE, D. M, KIM, K. J, WILLIAMS, R. M. S

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A balloon-borne observation of the X-ray source Cygnus XR-1 by Metzger, Albert E., Dolan, Joseph F.

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Discovery of Soft X-Ray Emission from Io, Europa, and the Io Plasma Torus by Elsner, Ronald F, Gladstone, G. Randall, Waite, J. Hunter, Crary, Frank J, Howell, Robert R, Johnson, Robert E, Ford, Peter G, Metzger, Albert E, Hurley, Kevin C, Feigelson, Eric D, Garmire, Gordon P, Bhardwaj, Anil, Grodent, Denis C, Majeed, Tariq, Tennant, Allyn F, Weisskopf, Martin C

“…We report the discovery of soft (0.25-2 keV) X-ray emission from the Galilean satellites Io and Europa, probably Ganymede, and from the Io Plasma Torus (IPT)…”
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An X-Ray Measurement of Titan's Atmospheric Extent from Its Transit of the Crab Nebula by Mori, Koji, Tsunemi, Hiroshi, Katayama, Haruyoshi, Burrows, David N, Garmire, Gordon P, Metzger, Albert E

“…Saturn's largest satellite, Titan, transited the Crab Nebula on 2003 January 5. We observed this astronomical event with the Chandra X-Ray Observatory. An…”
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The Mars Odyssey Gamma-Ray Spectrometer instrument suite: 2001 Mars Odyssey by BOYNTON, W. V, FELDMAN, W. C, ENGLERT, P. A. J, METZGER, A. E, WÄNKE, H, BRÜCKNER, J, DRAKE, D. M, SHINOHARA, C, FELLOWS, C, HAMARA, D. K, HARSHMAN, K, KERRY, K, MITROFANOV, I. G, TURNER, C, WARD, M, BARTHE, H, FULLER, K. R, STORMS, S. A, THORNTON, G. W, LONGMIRE, J. L, LITVAK, M. L, TON'CHEV, A. K, EVANS, L. G, REEDY, R. C, SQUYRES, S. W, STARR, R, TROMBKA, J. I, D'USTON, C, ARNOLD, J. R

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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, 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, SQUYRES, S. W, MAURICE, S, MIKHEEVA, I, TAYLOR, G. J, TOKAR, R, SHINOHARA, C, PRETTYMAN, T. H, BRÜCKNER, J, EVANS, L. G, REEDY, R. C, STARR, R, ARNOLD, J. R, DRAKE, D. M

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An X-ray measurement of Titan's atmospheric extent from its transit of the Crab Nebula by Mori, K, Tsunemi, H, Katayama, H, Burrows, D. N, Garmire, G. P, Metzger, A. E

“…Astrophys.J. 607 (2004) 1065-1069 Saturn's largest satellite, Titan, transited the Crab Nebula on 5 January 2003. We observed this astronomical event with the…”
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