Channels of bulge formation: Influence of stellar clumps

GARGIULO, I. D.; PÉREZ, M. J; CORA, S. A.; VALENZUELA, O. ; AVILA REESE, V. ; PADILLA, N. D. ; TECCE, T. E. ; RUIZ, A. N.

Mar del Plata

Congreso; 55 Reunión Anual de la Asociación Argentina de Astronomía; 2012

Instituto Argentino de Radioastronomía

We modify a semi-analytic model of galaxy formation to include the formation of stellar clumps in galaxy discs as observed in high redshift galaxies, and study their influence in bulge growth. We find that with our current implementation, the observed bulge to total mass ratio is in better agreement with observations for high mass galaxies. However, in the low mass range we overestimate the fraction of stellar mass in bulges.