2013/05/31 by Joseph Silk · 5 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Star Formation Studies #Black hole (networking) #Galaxies: Formation, Evolution, Phenomena #Galaxy #Intergalactic star #Quasar #Redshift #Star (game theory) #Star formation #Stellar black hole #Supermassive black hole #astro-ph.CO
paper · pdf · doi:10.1088/0004-637x/772/2/112
published as ApJ, 772, 112 (2013) · Astrophysical Journal, accepted version
arxiv created 2013/06/03 · openalex publication_date 2013/07/12 · arxiv updated 2015/06/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
Pressure-regulated star formation is a simple variant on the usual supernova-regulated star formation efficiency that controls the global star formation rate as a function of cold gas content in star-forming galaxies, and accounts for the Schmidt–Kennicutt law in both nearby and distant galaxies. Inclusion of active galactic nucleus (AGN) induced pressure, by jets and/or winds that flow back onto a gas-rich disk, can lead, under some circumstances, to significantly enhanced star formation rates, especially at high redshift and most likely followed by the more widely accepted phase of star formation quenching. Simple expressions are derived that relate supermassive black hole growth, star formation, and outflow rates. The ratios of black hole to spheroid mass and of both black hole accretion and outflow rates to star formation rate are predicted as a function of time. I suggest various tests of the AGN-triggered star formation hypothesis.