In the news today .. reports of the latest 'computer simulations' on how the first black holes formed and how structures grow around them. Mind you, they are still simulations from a model ...
"First Super Massive Black Holes Were born 'Soon' After the Big Bang"
http://www.physorg.com/news201957102.html
"Astronomers believe they have discovered the origin of our universe's first super-massive black holes, which formed some 13 billion years ago."
...
"For more than two decades, the prevailing wisdom among astronomers has been that galaxies evolved hierarchically -- that is, gravity drew small bits of matter together first, and those small bits gradually came together to form larger structures.
Kazantzidis and his team turn that notion on its head.
"For example, the standard idea -- that a galaxy's properties and the mass of its central black hole are related because the two grow in parallel -- will have to be revised. In our model, the black hole grows much faster than the galaxy. So it could be that the black hole is not regulated at all by the growth of the galaxy. It could be that the galaxy is regulated by the growth of the black hole."
Interesting ... mostly about 'truing up' the complex models of BH/Galaxy mergers .. nice videos showing the simulations.
Cheers