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Density cusps: restrictions on non-axisymmetric models | | D. Syer
; HongSheng Zhao
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17 Jun 1997 | | Subject: | astro-ph | | Affiliation: | MPA) and HongSheng Zhao (Leiden | | Abstract: | Galactic nuclei are now generally thought to have density cusps in their centres, and the evidence is mounting that as a consequence they are unlikely to be triaxial. Self-consistent stellar dynamical models of non-axisymmetric cusps would be an interesting counter-argument to this conclusion. We consider 2-d analogues of triaxial cusps: a sequence of non-axisymmetric, cuspy discs first described by Sridhar & Touma (1997). Scale-free models with potential {}$Phipropto r^alpha$ are examined in detail. It is shown analytically for $0 | | Source: | arXiv, astro-ph/9706170 | | Services: | Forum | Review | PDF | Favorites | |
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