A5070495850- Planetary Science and Exploration
- Geological and Geochemical Analysis
- Astro and Planetary Science
- Combustion and flame dynamics
- Mass Spectrometry Techniques and Applications
- Advanced Combustion Engine Technologies
- Geology and Paleoclimatology Research
- Laser-induced spectroscopy and plasma
- Catalytic Processes in Materials Science
- Isotope Analysis in Ecology
- Space Exploration and Technology
- Geochemistry and Geologic Mapping
- Radiative Heat Transfer Studies
- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Spectroscopy and Laser Applications
- High-pressure geophysics and materials
- Paleontology and Stratigraphy of Fossils
- CO2 Sequestration and Geologic Interactions
- Bacterial Identification and Susceptibility Testing
- Origins and Evolution of Life
- Advanced Chemical Physics Studies
- Toxic Organic Pollutants Impact
- Space Satellite Systems and Control
- Space Science and Extraterrestrial Life
University of Maryland, College Park
2017-2025
Goddard Space Flight Center
2017-2025
Park University
2020
Centre National de la Recherche Scientifique
2013-2017
Institut National des Sciences Appliquées Rouen Normandie
2013-2017
Complexe de Recherche Interprofessionnel en Aérothermochimie
2013-2017
Normandie Université
2015-2017
Université de Rouen Normandie
2013-2017
Southern Illinois University Carbondale
2015-2016
Solvay (France)
2015
RATIONALE: The investigation of cryogenic planetary environments as potential harbors for extant life and/or contemporary sites organic synthesis represents an emerging focal point in exploration. Next generation instruments need to be capable unambiguously determining elemental molecular stoichiometry via highly accurate mass measurements and the separation isobaric interferences. METHODS: An OrbitrapTM analyzer adapted spaceflight (referred CosmOrbitrap), coupled with a commercial pulsed...
Meteoritic impacts on planetary surfaces deliver a significant amount of energy that can produce prebiotic organic compounds such as cyanides, which may be key step to the formation biomolecules. To study chemical processes impact-induced synthesis, we simulated physicochemical hypervelocity (HVI) in experiments with both high-speed 13C60+ projectiles and laser ablation. In first approach, beam was accelerated collide ammonium nitrate (NH4NO3) reproduce shock process plume generation...
A methodology is discussed to automatically determine the parameters of closed budget equations for chemical species mass fractions and energy, in order simulate spatially filtered flames as required large eddy simulation (LES). The method accounts effects LES filtering on chemistry transport by simultaneously optimizing, a reduced number species, Arrhenius reaction rates correction mixture-averaged molecular diffusion coefficients. objective match, given filter size, canonical...
Abstract Potassium (K) informs on the radiogenic heat production, atmospheric composition, and volatile element depletion of Earth other planetary systems. Constraints abundance K in Earth, Moon, rocky bodies have historically hinged K/U values measured materials, particularly comparisons continental crust mid‐ocean ridge basalts (MORBs), for developing compositional models bulk silicate (BSE). However, a consensus most representative value global MORB remains elusive despite numerous...
Abstract Geochronology is an indispensable tool for reconstructing the geologic history of planets, essential to understanding formation and evolution our solar system. Bombardment chronology bounds models system dynamics, as well timing volatile, organic, siderophile element delivery. Absolute ages magmatic products provide constraints on dynamics magma oceans crustal formation, longevity interior heat engines distinct mantle/crustal source regions. dating also relates habitability markers...
We report full ionization of organic molecules or refractory elements with a low power and reduced-pressure microwave plasma source that can be applied to any specific analyzer for deployment in remote terrestrial planetary environments.
The design of a reduced‐order model is discussed to help in the control selective noncatalytic reduction (SNCR) nitrogen monoxide. Instead relying on look‐up table nominal operating points, it proposed solve for time evolution set stochastic particles interacting through turbulent mixing and reduced chemistry. Each particle representative fraction mass flowing system gaseous or liquid form. To calibrate validate model, which runs few minutes desktop computer, reference three‐dimensional...
Abstract Martian magmas are thought to be rich in chlorine compared with their terrestrial counterparts. Here, we experimentally investigate the effect of on liquidus depression and near‐liquidus crystallization olivine‐phyric shergottite NWA 6234 compare these results previous experimental surface basalts Humphrey Fastball. Previous showed that change temperature is dependent bulk composition basalt. The greater for lower SiO 2 higher Al O 3 than magmas. this study has FeO contents work;...
Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICPMS) is a versatile technique used for identifying the composition of geological materials and quantifying element abundances. The PLASMA (Pulsed Sampling Analysis) investigation, supported through NASA DALI (Development Advancement Lunar Instrumentation) program, focused on technical development an LA-ICPMS instrument comprising multiwavelength pulsed laser, low power plasma source, collision cell designed to separate Rb Sr...
Abstract Trace elements, distinguished by their low abundances (parts per million weight (ppmw)), track local, regional, and planetary-scale processes in samples sourced from throughout the solar system. Such analyses of lunar have provided insights on its surface rocks interpretations deep interior. However, returned samples, nearside, cannot be used to address responsible for morphological dichotomy between nearside farside. The hemispherical points distinct evolutionary histories these...