Galaxies nurtured by mature black holes
  Supermassive black holes (SMBH) of size $10^{6-10}M_{\odot}$ are common in
the Universe and they define the center of the galaxies. A galaxy and the SMBH
are generally thought to have co-evolved. However, the SMBH cannot evolve so
fast as commonly observed even at redshift $z>6$. Therefore SMBH must form
first before galaxy. Our goal is to clarify how this mature SMBH forms galaxy.
Furthermore we clarify the mechanism how the SMBH designs variety of structures
of galaxies. We explore a natural hypothesis that the SMBH has been formed
mature at $z\approx10$ before stars and galaxies. The SMBH forms energetic jets
and outflows which trigger massive star formation in the ambient gas. They
eventually construct globular clusters and classical bulge as well as the body
of elliptical galaxies. We propose simple models which implement these
processes along with the standard $\Lambda$CDM-model. We point out that the
globular clusters and classical bulges have a common origin but are in
different phases. The same is true for the elliptical and spiral galaxies.
Physics behind these phase division is the runaway star formation process with
strong feedback to SMBH. This is similar to the forest-fire model that displays
self-organized criticality. Finally we speculate several observational
predictions that may help to test the present arguments.
