C. M. Pieters
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View article: Asymmetry in Measurements near Light Speed
Asymmetry in Measurements near Light Speed Open
The intentions of this theoretical exercise are two-fold. Firstly, the relationship between measurement and the theory or hypothesis that is tested is discussed as a methodological challenge. It is argued that measurements will always lead…
View article: Regional elemental abundances within South Pole-Aitken basin as measured with lunar prospector gamma-ray spectrometer data.
Regional elemental abundances within South Pole-Aitken basin as measured with lunar prospector gamma-ray spectrometer data. Open
South Pole-Aitken (SPA) basin has been a target of intense study since it is one of the largest impact basins in the solar system. It is thought that SPA basin excavated deep into the lunar crust and possibly even the mantle. Such conclusi…
View article: Variations in surface adsorbed H2O on lunar soils and relevant minerals
Variations in surface adsorbed H2O on lunar soils and relevant minerals Open
Spectral variations due to the removal of surface adsorbed H2O at 3 and 6 μm in reflectance spectra on lunar soils and relevant minerals (olivine, pyroxene, and plagioclase) have been assessed. This study characterizes variations in hydrat…
View article: Intermediate Infrared Spectroscopy of Pyroxene: Determination of Ca‐Mg‐Fe Composition in the 4–8 Micron Wavelength Range
Intermediate Infrared Spectroscopy of Pyroxene: Determination of Ca‐Mg‐Fe Composition in the 4–8 Micron Wavelength Range Open
Although pyroxene has been detected remotely across the Solar System, limited information is available from infrared remote sensing about the Mg‐Fe composition of pyroxene, and distinguishing between augite (20 < CaSiO 3 < 45) and diopside…
View article: Dataset for Intermediate Infrared Spectroscopy of Pyroxene
Dataset for Intermediate Infrared Spectroscopy of Pyroxene Open
Spectra of pyroxene samples used in paper entitled Intermediate Infrared Spectroscopy of Pyroxene: Determination of Ca-Mg-Fe Composition in the 4-8 Micron Wavelength Range
View article: Dataset for Intermediate Infrared Spectroscopy of Pyroxene
Dataset for Intermediate Infrared Spectroscopy of Pyroxene Open
Spectra of pyroxene samples used in paper entitled Intermediate Infrared Spectroscopy of Pyroxene: Determination of Ca-Mg-Fe Composition in the 4-8 Micron Wavelength Range
View article: Volatile interactions with the lunar surface
Volatile interactions with the lunar surface Open
The Moon is generally depleted in volatile elements and this depletion extends to the surface where the most abundant mineral, anorthite, features <6 ppm H2O. Presumably the other nominally anhydrous minerals that dominate the mineral comp…
View article: Replenishment of Near‐Surface Water Ice by Impacts Into Ceres' Volatile‐Rich Crust: Observations by Dawn's Gamma Ray and Neutron Detector
Replenishment of Near‐Surface Water Ice by Impacts Into Ceres' Volatile‐Rich Crust: Observations by Dawn's Gamma Ray and Neutron Detector Open
Ceres' regolith contains water ice that has receded in response to insolation‐driven sublimation. Specially targeted, high spatial‐resolution measurements of hydrogen by Dawn's Gamma Ray and Neutron Detector (GRaND) reveal elevated hydroge…
View article: NanoSWARM: NanoSatellites for Space Weathering, Surface Water, Solar Wind, and Remanent Magnetism
NanoSWARM: NanoSatellites for Space Weathering, Surface Water, Solar Wind, and Remanent Magnetism Open
The NanoSWARM mission concept is a detailed investigation of particles and magnetic fields to help characterize the surfaces of airless planetary bodies, their volatile element distributions, and their geophysical histories.NanoSWARM inves…
View article: Lunar Volatiles and Solar System Science
Lunar Volatiles and Solar System Science Open
Understanding the origin and evolution of the lunar volatile system is not only compelling lunar science, but also fundamental Solar System science. This white paper (submitted to the US National Academies' Decadal Survey in Planetary Scie…
View article: Impact heat driven volatile redistribution at Occator crater on Ceres as a comparative planetary process
Impact heat driven volatile redistribution at Occator crater on Ceres as a comparative planetary process Open
Hydrothermal processes in impact environments on water-rich bodies such as Mars and Earth are relevant to the origins of life. Dawn mapping of dwarf planet (1) Ceres has identified similar deposits within Occator crater. Here we show using…
View article: How Artemis Can Accomplish Major Lunar Exploration Scientific Goals and Objectives: A Sampling Strategy and the “Artemis Rake”
How Artemis Can Accomplish Major Lunar Exploration Scientific Goals and Objectives: A Sampling Strategy and the “Artemis Rake” Open
For the Artemis-targeted unique lunar South-Circumpolar Region, we outline its Moon-wide context and major scientific problems and assess the optimal sampling strategy for initial and early Artemis human exploration missions to obtain a re…
View article: Mineralogy and temperature of crater Haulani on Ceres
Mineralogy and temperature of crater Haulani on Ceres Open
We investigate the region of crater Haulani on Ceres with an emphasis on mineralogy as inferred from data obtained by Dawn's Visible InfraRed mapping spectrometer ( VIR ), combined with multispectral image products from the Dawn Framing Ca…
View article: Geologic constraints on the origin of red organic‐rich material on Ceres
Geologic constraints on the origin of red organic‐rich material on Ceres Open
The geologic context of red organic‐rich materials ( ROR ) found across an elongated 200 km region on Ceres is evaluated with spectral information from the multispectral framing camera ( FC ) and the visible and near‐infrared mapping spect…
View article: Carbonaceous chondrites as analogs for the composition and alteration of Ceres
Carbonaceous chondrites as analogs for the composition and alteration of Ceres Open
The mineralogy and geochemistry of Ceres, as constrained by Dawn's instruments, are broadly consistent with a carbonaceous chondrite (CM/CI) bulk composition. Differences explainable by Ceres’s more advanced alteration include the formatio…
View article: Crater-related cryovolcanism on Ceres
Crater-related cryovolcanism on Ceres Open
During the Dawn mission, observations at Ceres reveal numerous interesting post-impact modifications in and around craters. These modifications contain the deposition of extended plains material with pits, multiple lobate flows, and widely…
View article: Cryogenic flow features on Ceres: Implications for crater‐related cryovolcanism
Cryogenic flow features on Ceres: Implications for crater‐related cryovolcanism Open
Craters on Ceres, such as Haulani, Kupalo, Ikapati, and Occator show postimpact modification by the deposition of extended plains material with pits, multiple lobate flows, and widely dispersed deposits that form a diffuse veneer on the pr…
View article: Space weathering on airless bodies
Space weathering on airless bodies Open
Space weathering refers to alteration that occurs in the space environment with time. Lunar samples, and to some extent meteorites, have provided a benchmark for understanding the processes and products of space weathering. Lunar soils are…
View article: Reflectance spectroscopy of chromium-bearing spinel with application to recent orbital data from the Moon
Reflectance spectroscopy of chromium-bearing spinel with application to recent orbital data from the Moon Open
Visible to near-infrared (V-NIR) remote sensing observations have identified spinel in various locations and lithologies on the Moon. Experimental studies have quantified the FeO content of these spinels (Jackson et al. 2014), however the …
View article: Complexities in pyroxene compositions derived from absorption band centers: Examples from Apollo samples, <scp>HED</scp> meteorites, synthetic pure pyroxenes, and remote sensing data
Complexities in pyroxene compositions derived from absorption band centers: Examples from Apollo samples, <span>HED</span> meteorites, synthetic pure pyroxenes, and remote sensing data Open
We reexamine the relationship between pyroxene composition and near‐infrared absorption bands, integrating measurements of diverse natural and synthetic samples. We test an algorithm ( PLC ) involving a two‐part linear continuum removal an…