Search Results - "DELORY, G. T"

The Langmuir Probe and Waves (LPW) Instrument for MAVEN by Andersson, L., Ergun, R. E., Delory, G. T., Eriksson, A., Westfall, J., Reed, H., McCauly, J., Summers, D., Meyers, D.

“…We describe the sensors, the sensor biasing and control, the signal-processing unit, and the operation of the Langmuir Probe and Waves (LPW) instrument on the…”
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Dayside electron temperature and density profiles at Mars: First results from the MAVEN Langmuir probe and waves instrument by Ergun, R. E., Morooka, M. W., Andersson, L. A., Fowler, C. M., Delory, G. T., Andrews, D. J., Eriksson, A. I., McEnulty, T., Jakosky, B. M.

“…We present Mars' electron temperature (Te) and density (ne) altitude profiles derived from the MAVEN (Mars Atmosphere and Volatile EvolutioN) mission deep dip…”
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Variability of helium, neon, and argon in the lunar exosphere as observed by the LADEE NMS instrument by Benna, M., Mahaffy, P. R., Halekas, J. S., Elphic, R. C., Delory, G. T.

“…The Neutral Mass Spectrometer (NMS) onboard the Lunar Atmosphere and Dust Environment Explorer (LADEE) provided the first global characterization of He and Ar…”
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The Electric Field Instrument (EFI) for THEMIS by Bonnell, J. W., Mozer, F. S., Delory, G. T., Hull, A. J., Ergun, R. E., Cully, C. M., Angelopoulos, V., Harvey, P. R.

“…The design, performance, and on-orbit operation of the three-axis electric field instrument (EFI) for the NASA THEMIS mission is described. The 20 radial wire…”
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The Lunar Atmosphere and Dust Environment Explorer Mission by Elphic, R. C., Delory, G. T., Hine, Butler P., Mahaffy, P. R., Horanyi, M., Colaprete, A., Benna, M., Noble, S. K.

“…The Lunar Atmosphere and Dust Environment Explorer (LADEE) mission was designed to address long-standing scientific questions about the Moon’s environment,…”
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Detections of lunar exospheric ions by the LADEE neutral mass spectrometer by Halekas, J. S., Benna, M., Mahaffy, P. R., Elphic, R. C., Poppe, A. R., Delory, G. T.

“…The Lunar Atmosphere and Dust Environment Explorer (LADEE) Neutral Mass Spectrometer (NMS), operating in ion mode, provides sensitive detections of ions from…”
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Enhanced O2+ loss at Mars due to an ambipolar electric field from electron heating by Ergun, R. E., Andersson, L. A., Fowler, C. M., Woodson, A. K., Weber, T. D., Delory, G. T., Andrews, D. J., Eriksson, A. I., McEnulty, T., Morooka, M. W., Stewart, A. I. F., Mahaffy, P.R., Jakosky, B. M.

“…Recent results from the MAVEN Langmuir Probe and Waves instrument suggest higher than predicted electron temperatures (Te) in Mars' dayside ionosphere above…”
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Lunar pickup ions observed by ARTEMIS: Spatial and temporal distribution and constraints on species and source locations by Halekas, J. S., Poppe, A. R., Delory, G. T., Sarantos, M., Farrell, W. M., Angelopoulos, V., McFadden, J. P.

“…ARTEMIS observes pickup ions around the Moon, at distances of up to 20,000 km from the surface. The observed ions form a plume with a narrow spatial and…”
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Dust observations at orbital altitudes surrounding Mars by Andersson, L., Weber, T. D., Malaspina, D., Crary, F., Ergun, R. E., Delory, G. T., Fowler, C. M., Morooka, M. W., McEnulty, T., Eriksson, A. I., Andrews, D. J., Horanyi, M., Collette, A., Yelle, R., Jakosky, B. M.

“…Dust is common close to the martian surface, but no known process can lift appreciable concentrations of particles to altitudes above ~150 kilometers. We…”
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ARTEMIS observations of lunar pick-up ions in the terrestrial magnetotail lobes by Poppe, A. R., Samad, R., Halekas, J. S., Sarantos, M., Delory, G. T., Farrell, W. M., Angelopoulos, V., McFadden, J. P.

“…We report observations by the twin‐probe mission ARTEMIS of pick‐up ions of lunar origin obtained during times when the Moon was within the terrestrial…”
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Lunar Prospector observations of the electrostatic potential of the lunar surface and its response to incident currents by Halekas, J. S., Delory, G. T., Lin, R. P., Stubbs, T. J., Farrell, W. M.

“…We present an analysis of Lunar Prospector Electron Reflectometer data from selected time periods using newly developed methods to correct for spacecraft…”
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Ionospheric plasma density variations observed at Mars by MAVEN/LPW by Andrews, D. J., Andersson, L., Delory, G. T., Ergun, R. E., Eriksson, A. I., Fowler, C. M., McEnulty, T., Morooka, M. W., Weber, T., Jakosky, B. M.

“…We report on initial observations made by the Langmuir Probe and Waves relaxation soundingexperiment on board the NASA Mars Atmosphere and Volatile EvolutioN…”
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Anticipated electrical environment within permanently shadowed lunar craters by Farrell, W. M., Stubbs, T. J., Halekas, J. S., Killen, R. M., Delory, G. T., Collier, M. R., Vondrak, R. R.

“…Shadowed locations near the lunar poles are almost certainly electrically complex regions. At these locations near the terminator, the local solar wind flows…”
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On the origin of aurorae on Mars by Brain, D. A., Halekas, J. S., Peticolas, L. M., Lin, R. P., Luhmann, J. G., Mitchell, D. L., Delory, G. T., Bougher, S. W., Acuña, M. H., Rème, H.

“…We report observations by Mars Global Surveyor (MGS) of thousands of peaked electron energy spectra similar to terrestrial auroral electrons. They are observed…”
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ARTEMIS observations of extreme diamagnetic fields in the lunar wake by Poppe, A. R., Fatemi, S., Halekas, J. S., Holmström, M., Delory, G. T.

“…We present two Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun (ARTEMIS) observations of diamagnetic fields…”
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Complex electric fields near the lunar terminator: The near-surface wake and accelerated dust by Farrell, W. M., Stubbs, T. J., Vondrak, R. R., Delory, G. T., Halekas, J. S.

“…The lunar near‐surface electric field in the vicinity of the terminator is very complex, with a surface polarity change from dayside‐positive to…”
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Lunar surface charging during solar energetic particle events: Measurement and prediction by Halekas, J. S., Delory, G. T., Lin, R. P., Stubbs, T. J., Farrell, W. M.

“…We analyzed lunar surface charging during solar energetic particle (SEP) events, utilizing Lunar Prospector measurements of surface potentials and electron…”
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Using ARTEMIS pickup ion observations to place constraints on the lunar atmosphere by Halekas, J. S., Poppe, A. R., Delory, G. T., Sarantos, M., McFadden, J. P.

“…We present a method for deriving constraints on the structure and composition of the lunar atmosphere by using pickup ion measurements from ARTEMIS, mapping…”
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Anisotropic solar wind sputtering of the lunar surface induced by crustal magnetic anomalies by Poppe, A. R., Sarantos, M., Halekas, J. S., Delory, G. T., Saito, Y., Nishino, M.

“…The lunar exosphere is generated by several processes each of which generates neutral distributions with different spatial and temporal variability. Solar wind…”
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Lunar precursor effects in the solar wind and terrestrial magnetosphere by Halekas, J. S., Poppe, A. R., Farrell, W. M., Delory, G. T., Angelopoulos, V., McFadden, J. P., Bonnell, J. W., Glassmeier, K. H., Plaschke, F., Roux, A., Ergun, R. E.

“…The two ARTEMIS probes observe significant precursor activity upstream from the Moon, when magnetically connected to the dayside lunar surface. The most common…”
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