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Asteroid Surface Geophysics
The regolith-covered surfaces of asteroids preserve records of geophysical processes that have occurred both at their surfaces and sometimes also in their interiors. As a result of the uniqueExpand
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Numerical simulations of granular dynamics: I. Hard-sphere discrete element method and tests
We present a new particle-based (discrete element) numerical method for the simulation of granular dynamics, with application to motions of particles on small solar system body and planetaryExpand
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The Noise Model of the SEIS Seismometer of the InSight Mission to Mars
The SEIS (Seismic Experiment for Interior Structures) instrument on board the InSight mission to Mars is the critical instrument for determining the interior structure of Mars, the current level ofExpand
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An experimental study of low-velocity impacts into granular material in reduced gravity
In order to improve our understanding of landing on small bodies and of asteroid evolution, we use our novel drop tower facility \citep{sunday2016} to perform low-velocity (2 - 40 cm/s), shallowExpand
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Estimations of the Seismic Pressure Noise on Mars Determined from Large Eddy Simulations and Demonstration of Pressure Decorrelation Techniques for the Insight Mission
The atmospheric pressure fluctuations on Mars induce an elastic response in the ground that creates a ground tilt, detectable as a seismic signal on the InSight seismometer SEIS. The seismic pressureExpand
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Seismic Coupling of Short-Period Wind Noise Through Mars’ Regolith for NASA’s InSight Lander
NASA’s InSight lander will deploy a tripod-mounted seismometer package onto the surface of Mars in late 2018. Mars is expected to have lower seismic activity than the Earth, so minimisation ofExpand
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ELECTROSTATIC TRACTOR FOR NEAR EARTH OBJECT DEFLECTION
This paper contains a preliminary analysis on the possibility of changing the orbit of an asteroid by means of what is here defined as an “Electrostatic Tractor”. The Electrostatic Tractor is aExpand
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Seismometer Detection of Dust Devil Vortices by Ground Tilt
We report seismic signals on a desert playa caused by convective vortices and dust devils. The long-period (10–100 s) signatures, with tilts of ∼10−7 radians, are correlated with the presence ofExpand
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Evaluating the Wind-Induced Mechanical Noise on the InSight Seismometers
The SEIS (Seismic Experiment for Interior Structures) instrument onboard the InSight mission to Mars is the critical instrument for determining the interior structure of Mars, the current level ofExpand
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European component of the AIDA mission to a binary asteroid: Characterization and interpretation of the impact of the DART mission
TLDR
The European component of the joint ESA-NASA Asteroid Impact & Deflection Assessment (AIDA) mission has been redesigned from the original version called Asteroid impact Mission (AIM), and is now called Hera. Expand
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