Disks in elliptical galaxies

Rix, H.W. & White, S.D.M. 1990, Ap. J. 362, 52.

The abundance and strength of disk components in elliptical galaxies are investigated by studying the photometric properties of models containing a spheroidal r exp 1/4-law bulge and a weak exponential disk. 'Pointed' isophotes are observed in a substantial fraction of elliptical galaxies. If these isophote distortions are interpreted in the framework of the present models, then the statistics of observed samples suggest that almost all radio-weak ellipticals could have disks containing roughly 20 percent of the light. It is shown that the 'E5' galaxy NGC 4660 has the photometric signatures of a disk containing a third of the light.