  The secular evolution process which slowly transforms the morphology of a
given galaxy over its lifetime through mostly internal dynamical mechanisms
could naturally account for most of the observed properties of physical
galaxies (Zhang 2003a). As an emerging paradigm for galaxy evolution, its
dynamical foundations had been established in the past few years (Zhang 1996,
1998, 1999). In this paper, we explore further implications of the secular
morphological evolution process in reproducing the well-known scaling relations
of galaxies.

Astrophysics