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Books > Science & Mathematics > Astronomy, space & time > Solar system
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Hyper-Velocity Impacts on Rubble Pile Asteroids (Hardcover, 1st ed. 2017)
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Hyper-Velocity Impacts on Rubble Pile Asteroids (Hardcover, 1st ed. 2017)
Series: Springer Theses
Expected to ship within 10 - 15 working days
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The thesis presents a tool to create rubble pile asteroid simulants
for use in numerical impact experiments, and provides evidence that
the asteroid disruption threshold and the resultant fragment size
distribution are sensitive to the distribution of internal voids.
This thesis represents an important step towards a deeper
understanding of fragmentation processes in the asteroid belt, and
provides a tool to infer the interior structure of rubble pile
asteroids. Most small asteroids are 'rubble piles' - re-accumulated
fragments of debris from earlier disruptive collisions. The study
of fragmentation processes for rubble pile asteroids plays an
essential part in understanding their collisional evolution. An
important unanswered question is "what is the distribution of void
space inside rubble pile asteroids?" As a result from this thesis,
numerical impact experiments can now be used to link surface
features to the internal structure and therefore help to answer
this question. Applying this model to asteroid Steins, which was
imaged from close range by the Rosetta spacecraft, a large
hill-like structure is shown to be most likely primordial, while a
catena of pits can be interpreted as evidence for the existence of
fracturing of pre-existing internal voids.
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