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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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