Generation of a measurable magnetic field in a metal asteroid with a rubble-pile core
Proceedings of the National Academy of Sciences, 2023 Paleomagnetic records of iron meteorites of the IVA group suggest that their parent body (an inward-solidified metal asteroid) possessed an internal magnetic field. The origin of this magnetism is enigmatic because inward solidification typically leads to light element release from the top of the liquid, which depresses convection and dynamo activity ...
Zhongtian Zhang, David Bercovici
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Carbon Speciation and Solubility in Silicate Melts
Geophysical Monograph Series, Page 179-194., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Natalia Solomatova +2 more
wiley +2 more sources
Asteroid-Generated Tsunamis: A Review
, 2022 AbstractWe study ocean waves caused by an asteroid airburst located over the ocean. The concern is that the waves would damage distant coastal cities. Simple qualitative analysis suggests that the wave energy is proportional to the ocean depth and the strength and speed of the blast.
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Tsunami generation and propagation from the Mjølnir asteroid impact [PDF]
Meteoritics & Planetary Science, 2007 Abstract— In the late Jurassic period, about 142 million years ago, an asteroid hit the shallow paleo‐Barents Sea, north of present‐day Norway. The geological structure resulting from the impact is today known as the Mjølnir crater. The present work attempts to model the generation and the propagation of the tsunami from the Mjølnir impact.
S. Glimsdal +4 more
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Large main-belt asteroids are generally not Maclaurin or Jacobi ellipsoids
Astronomy & Astrophysics, 2023 Aims.A recent major high-angular-resolution imaging survey of 42 large main-belt asteroids (D > 100 km) with VLT/SPHERE has provided shape models of these bodies with an unprecedented accuracy. We ask whether the shapes of these bodies correspond to Maclaurin or Jacobi hydrostatic equilibrium figures.Methods.To address this question, we compared the
Chambat, Frédéric +2 more
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Unbiased orbit determination for the next generation asteroid/comet surveys [PDF]
Proceedings of the International Astronomical Union, 2005 In the next generation surveys, the discovery of moving objects can be successful only if an observation strategy and the identication/orbit determination procedure are appropriate for the diverse apparent motions of the target sub-populations. The observations must accurately measure the displacement over a short interval of time; observations ...
MILANI COMPARETTI, ANDREA +8 more
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ASTEROIDS: A Stixel Tracking Extrapolation-Based Relevant Obstacle Impact Detection System
IEEE Transactions on Intelligent Vehicles, 2020 This paper presents a vision-based collision-warning system for ADAS in intelligent vehicles, with a focus on urban scenarios. In most current systems, collision warnings are based on radar, or on monocular vision using pattern recognition.
Willem P. Sanberg +2 more
semanticscholar +1 more source
ADAM: a general method for using various data types in asteroid reconstruction [PDF]
Astronomy & Astrophysics, 2015 11 pages, submitted to A& ...
Viikinkoski, Matti +2 more
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The Fast Generation of the Reachable Domain for Collision-Free Asteroid Landing
Mathematics, 2022 For the mission requirement of collision-free asteroid landing with a given time of flight (TOF), a fast generation method of landing reachable domain based on section and expansion is proposed. First, to overcome the difficulties of trajectory optimization caused by anti-collision path constraints, a two-stage collision-free trajectory optimization ...
Yingjie Zhao, Hongwei Yang, Jincheng Hu
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Frontiers in Astronomy and Space SciencesAsteroids with the potential to impact Earth have become a significant focus of scientific research and applied space technology. These bodies are expected to be key targets for mitigation actions and space mining activities in the coming decades ...
A. Fairén +14 more
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