Erratum: Isophotal shapes of elliptical/lenticular galaxies from the Sloan Digital Sky Survey

We revisit the shapes of isophotes for elliptical (E) and lenticular (S0) galaxies by studying 847 nearby early-type galaxies selected from the Sloan Digital Sky Survey (SDSS) Data Release 4 (DR4) with velocity dispersions above 200 km s−1. The iraf task ellipse was used to derive the deviations of the isophotes from pure ellipses (Fourier coefficients a3/a and a4/a), position angles (PAs) and ell...