Noncircular Outer Disks in Unbarred S0 Galaxies: NGC 502 and NGC 5485
  Strongly noncircular outer stellar disks have been found in two unbarred SA0
galaxies by analyzing spectroscopic data on the rotation of stars and
photometric data on the shape and orientation of the isophotes. In NGC 502, the
oval distortion of the disk is manifested as two elliptical rings, the inner
and the outer ones, covering wide radial zones between the bulge and the disk
and at the outer edge of the stellar disk. Such a structure may be a
consequence of the so-called "dry" minor merger - multiple accretion of
gas-free satellites. In NGC 5485, the kinematical major axis does not coincide
with the orientation of isophotes in the disk-dominated region, and for this
galaxy the conclusion about its global triaxial structure is unavoidable.
