The origin of pseudobulges in cosmological simulations of galaxy formation

More than half of nearby disc galaxies have pseudo-bulges, instead of classical bulges that are thought to be end-products of galaxy mergers. Pseudo-bulges are presumed to develop over time as a result of the secular evolution of galaxy discs. We report on simulations of galaxy formation, in which two disc galaxies with discy pseudo-bulges have formed. Based on the profile decomposition, the bulge...