Review Talk: "The Effects of Fly-bys on Planetary Systems" by Malmberg et al. 2010

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Date/Time:Friday, 29 Oct 2010 from 4:10 pm to 5:00 pm
Location:Room 3 Physics
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Review Talk by Josh Cardenzana, ISU Astronomy Graduate Student

Many extrasolar planets are found on tight and often eccentric orbits. One possible explanation is close interactions with a stellar object or free floating planet (one not bound to a star). In many cases planets may be ejected from their solar system during such interactions, but in others planets can remain bound for several million years before this occurs via planet scattering. Malmberg, Davies, and Heggie conduct simulations investigating how interactions with an approximately solar mass object would affect the four gas giants of our solar system in clusters with properties similar to the solar neighborhood. Other systems are also considered and will be discussed.