Growth and Feedback from the First Black Holes

Abstract

Regardless of their initial seed mass, any active galactic nuclei observed at redshifts z > 6 must have grown by several orders of magnitude from their seeds. In this chapter, we will discuss the physical processes and latest research on black hole growth and associated feedback after seed formation. Fueling is initially slowed down by radiative feedback from the black hole itself and supernova explosions from nearby stars. Its growth however accelerates once the host galaxy grows past a critical mass.Comment: 30 pages, 6 figures. Preprint of a review volume chapter to be published in Latif, M., & Schleicher, D.R.G., "Growth and Feedback from the First Black Holes'', Formation of the First Black Holes, 2018. Copyright World Scientific Publishing Company, https://www.worldscientific.com/worldscibooks/10.1142/1065