Cambridge University Press (CUP), Proceedings of the International Astronomical Union, S245(3), p. 113-116, 2007
DOI: 10.1017/s1743921308017419
Full text: Unavailable
AbstractClose examination of “pseudobulges” in several early-type disk galaxies indicates that they are actually composite structures consisting of both a flattened, kinematically cool disklike structure (“disky pseudobulge”) and a rounder, kinematically hot spheroidal structure (“classical bulge”). This indicates that pseudobulges, thought to form from internal secular evolution, and classical bulges, thought to form from rapid mergers, are not exclusive phenomena: some galaxies can have both.