TY - JOUR
T1 - The growth of galactic bulges through mergers in LCDM haloes revisited. I. Present-day properties
AU - Zavala Franco, Jesus
AU - Avila-Reese, Vladimir
AU - Firmani, Claudio
AU - Boylan-Kolchin, Michael
PY - 2012
Y1 - 2012
N2 - We use the Millennium I and II cosmological simulations to revisit the impact of mergers in the growth of bulges in central galaxies in the LCDM scenario. We seed galaxies within the growing CDM haloes using semi-empirical relations to assign stellar and gaseous masses, and an analytic treatment to estimate the transfer of stellar mass to the bulge of the remnant after a galaxy merger. We find that this model roughly reproduces the observed correlation between the bulge-to-total (B/T) mass ratio and stellar mass in present-day central galaxies as well as their observed demographics, although low-mass B/T
AB - We use the Millennium I and II cosmological simulations to revisit the impact of mergers in the growth of bulges in central galaxies in the LCDM scenario. We seed galaxies within the growing CDM haloes using semi-empirical relations to assign stellar and gaseous masses, and an analytic treatment to estimate the transfer of stellar mass to the bulge of the remnant after a galaxy merger. We find that this model roughly reproduces the observed correlation between the bulge-to-total (B/T) mass ratio and stellar mass in present-day central galaxies as well as their observed demographics, although low-mass B/T
KW - astro-ph.CO
U2 - 10.1111/j.1365-2966.2012.22100.x
DO - 10.1111/j.1365-2966.2012.22100.x
M3 - Journal article
SN - 0035-8711
VL - 427
SP - 1503
EP - 1516
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 2
ER -