Gregory T. Delory

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Oxidant enhancement in martian dust devils and storms: implications for life and habitability.

Sushil K. Atreya, Author Wong, +7 authors David C. Catling
Astrobiology
2006

We investigate a new mechanism for producing oxidants, especially hydrogen peroxide (H2O2), on Mars. Large-scale electrostatic fields generated by charged sand and dust in the martian dust devils and… (More)

Oxidant enhancement in martian dust devils and storms: storm electric fields and electron dissociative attachment.

Gregory T. Delory, William M. Farrell, +7 authors David C. Catling
Astrobiology
2006

Laboratory studies, numerical simulations, and desert field tests indicate that aeolian dust transport can generate atmospheric electricity via contact electrification or "triboelectricity." In… (More)

The Mars Atmosphere and Volatile Evolution ( MAVEN ) Mission

B M Jakosky, Robert P. Lin, +68 authors R. Zurek
2012

The MAVEN spacecraft launched in November 2013, arrived at Mars in September 2014, and completed commissioning and began its one-Earth-year primary science mission in November 2014. The orbiter’s… (More)

MATADOR 2002 : A pilot field experiment on convective plumes and dust devils

Nilton O. Rennó, Vincent J. Abreu, +10 authors A I Carswell
2004

[1] Recent research suggests that mineral dust plays an important role in terrestrial weather and climate, not only by altering the atmospheric radiation budget, but also by affecting cloud… (More)

Electric and magnetic signatures of dust devils from the 2000 – 2001 MATADOR desert tests

William M. Farrell, Paul H. Smith, +10 authors Ben T. Johnson
2004

[1] Dust devils are significant meteorological phenomena on Mars: They are ubiquitous, continually gardening the Martian surface, and may be the primary atmospheric dustloading mechanism in nonstorm… (More)

ARTEMIS observations of lunar pick-up ions in the terrestrial magnetotail lobes

Andrew R. Poppe, Ricardo Elgul Samad, +5 authors James P. McFadden
2012

[1] 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 magnetotail lobes. These ions were detected… (More)

Model-based constraints on the lunar exosphere derived from ARTEMIS pickup ion observations in the terrestrial magnetotail

[1] We use Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon’s Interaction with the Sun (ARTEMIS) measurements of lunar exospheric pickup ions in the terrestrial magnetotail… (More)

Using ARTEMIS pickup ion observations to place constraints on the lunar atmosphere

[1] We present a method for deriving constraints on the structure and composition of the lunar atmosphere by using pickup ion measurements from ARTEMIS, mapping observed fluxes from the spacecraft… (More)

First remote measurements of lunar surface charging from ARTEMIS : Evidence for nonmonotonic sheath potentials above the dayside surface

Jasper S. Halekas, Gregory T. Delory, +5 authors Ferdinand Plaschke
2011

[1] During an early lunar encounter, ARTEMIS‐P2 passed earthward from the Moon in the terrestrial magnetotail. Fortuitously, though more than 8000 km away, magnetic field lines connected the… (More)

Lunar pickup ions observed by ARTEMIS : Spatial and temporal distribution and constraints on species and source locations

Jasper S. Halekas, Andrew R. Poppe, +4 authors James P. McFadden
2013

[1] 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 angular extent, generally seen in a single… (More)

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