Studying Dynamical Models of the Core Galaxy NGC 1399 with Merging
  Remnants
  An investigation on the possible dynamical models of the core galaxy NGC 1399
is performed. Because early-type galaxies are likely to be formed through
merging events, remnant rings are considered in the modeling process. A
numerical survey over three parameters is employed to obtain the best-fit
models that are completely consistent with observations. It is found that the
inner slope of dark matter profile is a cuspy one for this core galaxy. The
existence of remnant rings in best-fit models indicates a merging history. The
remnant ring explains the flatten surface brightness, and thus could be the
physical counterpart of the core structure of NGC 1399.
