102 citations · 241 across the 13 of their papers we have counts for
13 papers
Mixing model of Phobos' bulk elemental composition for the determination of its origin: Multivariate analysis of MMX/MEGANE data
Kaori Hirata, Tomohiro Usui, Ryuki Hyodo +6
The formation process of the two Martian moons, Phobos and Deimos, is still debated with two main competing hypotheses: the capture of an asteroid or a giant impact onto Mars. In o…
Mercury Lander: Planetary Mission Concept Study for the 2023-2032 Decadal Survey
Carolyn M. Ernst, Sanae Kubota, Nancy Chabot +21
As an end-member of terrestrial planet formation, Mercury holds unique clues about the original distribution of elements in the earliest stages of solar system development and how…
Space-based Measurements of Neutron Lifetime: Approaches to Resolving the Neutron Lifetime Anomaly
David J. Lawrence, Jack T. Wilson, Patrick N. Peplowski
Free neutrons have a measured lifetime of 880 s, but disagreement between existing laboratory measurements of ~10 s have persisted over many years. This uncertainty has implication…
Measurement of the Free Neutron Lifetime using the Neutron Spectrometer on NASA's Lunar Prospector Mission
Jack T. Wilson, David J. Lawrence, Patrick N. Peplowski +2
We use data from the Lunar Prospector Neutron Spectrometer to make the second space-based measurement of the free neutron lifetime finding $τ_n=887 \pm 14_\text{stat}{\:^{+7}_{-3\:…
Space-Based Measurement of the Neutron Lifetime using Data from the Neutron Spectrometer on NASA's MESSENGER Mission
Jack T. Wilson, David J. Lawrence, Patrick N. Peplowski +2
We establish the feasibility of measuring the neutron lifetime via an alternative, space-based class of methods, which use neutrons generated by galactic cosmic ray spallation of p…
Chemically-distinct regions within Venus' atmosphere revealed by MESSENGER-measured N2 concentrations
Patrick N. Peplowski, David J. Lawrence, Jack T. Wilson
A defining characteristic of the planet Venus is its thick, CO2-dominated atmosphere. Despite over fifty years of robotic exploration, including thirteen successful atmosphere prob…