Planet migration with gravitationally unstable gaps

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• Min-Kai Lin (DAMTP)
• Monday 24 October 2011, 16:00-17:00
• MR14, Centre for Mathematical Sciences, Wilberforce Road, Cambridge.

If you have a question about this talk, please contact Henrik Latter.

I present numerical simulations of disc-planet interactions where the planet opens a gravitationally unstable gap in an otherwise gravitationally stable disc. In our disc models, as the gap becomes more unstable the planet migrates outwards more rapidly. Our results suggest that standard type II migration, applicable to giant planets in non-self-gravitating viscous discs, is likely to be significantly modified in massive discs when gravitational instabilities associated with the gap occur. I will also present recent 3D simulations on gap stability.

This talk is part of the DAMTP Astrophysics Seminars series.

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• MR14, Centre for Mathematical Sciences, Wilberforce Road, Cambridge
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