Bower et al. (2006)

Bower et al. (2006) - "Breaking the hierarchy of galaxy formation"

From this page you can access various data associated with Bower et al. (2006).

Galaxy Catalogs

An SQL interface to our galaxy catalogs can be found here.

Animated Figures

Below are animated versions of figures 1 through 3 which show evolution with redshift. Click the image to view the animations, or right-click to save them.

Figure 1. The black hole vs. galaxy bulge mass relation at z = 0. The colour dots show the relation obtained using one tenth of the Millennium simulation. The colours distinguish galaxies according to whether they are satellites (green points) or central galaxies of halo of masses < 3×10¹¹h^-1M_Sun; (black points), 3×10¹¹- 10¹²h^-1M_Sun (blue points) or > 10¹²h^-1M_Sun (red points). The points with error bars are local data from Haering & Rix (2004); the black line gives the best fitting relation to these data.

Figure 2. The contribution of different processes to the volume averaged rate of growth of black hole mass as a function of redshift. The colour lines illustrate the contribution to the black hole mass growth rate from: galaxy mergers (red); disk instabilities (green); accretion associated with AGN feedback in quasi-hydrostatic flows (blue). At high redshift, the growth of black holes is dominated by instabilities in the rapidly forming disks. At lower redshifts, it is dominated by accretion from quasihydrostatic cooling in massive halos.

Figure 3. The luminosity function of galaxies in the local Universe. The upper panel compares the model bJ -band luminosity function (red lines) with the observational determination from the 2dF galaxy redshift survey by Norberg et al. (2002). Here and in the panel below the dotted line shows the model prediction without dust obscuration and the solid line the prediction taking obscuration into account, while the dashed lines show models in which feedback from AGN has been switched off. The lower panel compares the K-band luminosity function in the model to the observational determinations by Cole et al. (2001) and Huang et al. (2003). Arrows indicate the approximate magnitude faintwards of which of sample of model galaxies becomes incomplete due to the limited mass resolution of the Millennium simulation.