Secular Instabilities of Keplerian Stellar Discs

13 Feb 2018 Kaur Karamveer Kazandjian Mher Sridhar S. Touma Jihad

We present idealized models of a razor-thin, axisymmetric, Keplerian stellar disc around a massive black hole, and study non-axisymmetric secular instabilities in the absence of either counter-rotation or loss cones. These discs are prograde mono-energetic waterbags, whose phase space distribution functions are constant for orbits within a range of eccentricities (e) and zero outside this range... (read more)

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  • ASTROPHYSICS OF GALAXIES