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On Non-circular Accretion Discs

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If you have a question about this talk, please contact Dr. Yufeng Lin .

Circular discs have an Eulerian description in terms of polar coordinates, but these are not well adapted to geometries of more general discs. For disc models with a sufficient number of conserved quantities a Lagrangian description can be more useful. This is useful for discs which have large scale departures from axisymmetry. The dynamics of a near Keplerian eccentric disc are rich and take the form of a nonlinear wave equation.

This talk is part of the DAMTP Astro Lunch series.

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