Hyper-Velocity Impacts on Rubble Pile Asteroids (Hardcover, 1st ed. 2017)

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.

General

Imprint:	Springer International Publishing AG
Country of origin:	Switzerland
Series:	Springer Theses
Release date:	December 2016
First published:	2017
Authors:	Jakob Deller
Dimensions:	235 x 155 x 13mm (L x W x T)
Format:	Hardcover
Pages:	164
Edition:	1st ed. 2017
ISBN-13:	978-3-319-47984-2
Categories:	Books > Science & Mathematics > Mathematics > Applied mathematics > General Books > Science & Mathematics > Astronomy, space & time > Solar system > General Books > Science & Mathematics > Physics > Applied physics & special topics > Astrophysics Books > Professional & Technical > Other technologies > Space science > Astronautics
LSN:	3-319-47984-9
Barcode:	9783319479842

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