Titlebook: Development of a Numerical Simulation Method for Rocky Body Impacts and Theoretical Analysis of Aste; Keisuke Sugiura Book 2020 The Editor

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Summary and Future Prospects, numerical simulations. We also analyzed shapes of actual asteroids and compare them with shapes of impact outcomes produced through our simulations. Finally we applied our simulations to the formation of the extremely elongated shape of 1I/‘Oumuamua. In this chapter, we summarize our study. We also

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2190-5053 pacts, helping readers to develop simulation codes using the.This book describes numerical simulations of collisions between asteroids, based on a unique numerical code developed by the author. The code accurately solves the elastic dynamic equations and describes the effects of fracture and frictio

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https://doi.org/10.1007/978-3-662-29974-6Finally we applied our simulations to the formation of the extremely elongated shape of 1I/‘Oumuamua. In this chapter, we summarize our study. We also state future prospects of our study such as application to other phenomena.

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Results: Shapes of Impact Outcomes, impact simulations. As a result, we find that similar-mass and low-velocity impacts produce various shapes including extremely flat and elongated shapes. In contrast, high-velocity and destructive impacts mainly produce spherical and bilobed shapes, but they are difficult to produce flat shapes.

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https://doi.org/10.1007/978-3-662-29974-6those shapes obtained from several databases, and we find that many flat asteroids are not included in any asteroid families. Both the results of our simulations and the information of actual asteroids suggest that flat shapes of large asteroids are likely to be formed in the primordial environment and they keep their flat shapes until today.