Mathematics – Logic
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ippa....2d..17k&link_type=abstract
Ipparchos, Vol.2, Issue 4, p. 17-22
Mathematics
Logic
Scientific paper
In recent years, compelling dynamical evidence has indicated that supermassive black holes (SMBHs) are ubiquitous in galactic nuclei. According to the currently favored cold dark matter cosmological model, structures in the Universe grow through a complex process of continuous mergers and accretion of smaller systems. Thus, the hierarchical buildup of SMBHs by massive seed black holes present at the center of protogalaxies and the formation of SMBH binaries appear as natural consequences in any hierarchical cosmogony. Upcoming gravitational wave detection experiments such as the Laser Interferometer Space Antenna will be able to detect emission from coalescing SMBH binaries essentially to the edge of the observable Universe and provide a test of General Relativity as well as constraints on galaxy formation theories. The available observational data also reveal the existence of a remarkably tight correlation between the mass of the SMBH and the stellar velocity dispersion of the host galaxy spheroid, suggesting a fundamental connection between the growth of SMBHs and the assembly of galaxies. Numerical simulations constitute the most powerful tool for elucidating such a connection. In this article, I discuss recent results regarding the coevolution of SMBHs and their host galaxies using high-resolution supercomputer simulations of galaxy mergers. Such investigations can have profound implications for our current understanding of galaxy formation and evolution.
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