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Universität Augsburg
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Universität Augsburg
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Professor Edward Belbruno
Institut für Mathematik
spricht am
Dienstag, 16. Oktober 2018
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17:30 Uhr
im
Raum 2004 (L1)
über das Thema:
| Abstract: |
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In this talk I’ll discuss the theoretical development of capture in celestial mechanics, starting with the problem of permanent capture in the 1920s and how this eventually led to the proof of chaos associated to the capture problem in the 1960s. Another type of capture is introduced, ballistic capture, defined in the 1980s, and how it has played a key role in using chaos theory to find low energy trajectories suitable for real applications for spacecraft. It was first dramatically demonstrated in 1991 with the rescue of a Japanese lunar mission. A proof that ballistic capture is chaotic in nature is presented and some open problems are discussed. Ballistic capture and the theory underlying it are now used in a many space missions. Other applications are given.
Brief bio: Ed Belbruno received his doctorate from the Courant Institute under the direction of Juergen Moser. He specializes in celestial mechanics, dynamical systems, astrodynamics, cosmology and astrophysics. His earlier work laid the foundations of applying chaos theory to astrodynamics, finding the first low energy trajectories suitable for applications to real spacecraft missions while at JPL of NASA. This was demonstrated with the rescue of a Japanese lunar mission in 1991. His most recent work is studying the dynamical nature of the big bang singularity using stochastic methods. He is a recent recipient of the Humboldt award and will be affiliated with U. Augsburg for 2018-2019. In the US, he’s at Princeton and Yeshiva Universities, and consults often with NASA. |
| Hierzu ergeht herzliche Einladung. |
| Urs Frauenfelder |
Kaffee, Tee und Gebäck eine halbe Stunde vor Vortragsbeginn im Raum 2006 (L1).