**AAS 195th Meeting, January 2000**

*Session 118. Supermassive Black Holes*

Oral, Saturday, January 15, 2000, 10:00-11:30am, Centennial I and II
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## [118.08] Self-Consistent Models of Eccentric Nuclear Disks

*R.M. Salow, T.S. Statler (Ohio U.)*

We have constructed approximate self-consistent models of
eccentric stellar disks to investigate the double nucleus of
M31. Our models include both a self-gravitating disk and a
central black hole. In essence, the models involve a
self-consistent iteration scheme in which a disk is
populated by a sequence of finite-dispersion orbits whose
parents are numerically integrated closed periodic orbits.
Once an initial model is assumed, a set of closed orbits is
found in the potential of the disk/black hole system, which
is then used to construct a disk using an approximate
distribution function; the cycle continues until an
equilibrium configuration is reached. Results show that
there exist combinations of disk precession speed, disk
mass, and orbital dispersion which allow approximate
self-consistent, self-gravitating disks to be found.
Preliminary analysis shows that these disks have properties
that give photometric and kinematic observables that closely
resemble those of M31. Comparisons between modeled and
observed rotation and dispersion profiles will be discussed,
with particular emphasis on determining whether or not
kinematic signatures, such as asymmetries in the rotation
and dispersion profiles, can be used to detect self-gravity
effects in the nucleus of M31.

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