UNLEASHING POSITIVE FEEDBACK: LINKING THE RATES OF STAR FORMATION, SUPERMASSIVE BLACK HOLE ACCRETION, AND OUTFLOWS IN DISTANT GALAXIES

被引：198

作者：

Silk, Joseph ^{[1
,2
,3
]}

机构：

[1] Univ Paris 06, CNRS, Inst Astrophys, UMR 7095, F-75014 Paris, France

[2] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[3] Univ Oxford, Dept Phys, Beecroft Inst Particle Astrophys & Cosmol, Oxford OX1 3RH, England

来源：

ASTROPHYSICAL JOURNAL | 2013年 / 772卷 / 02期

基金：

美国国家科学基金会;

关键词：

galaxies: active; galaxies: evolution; galaxies: star formation; Galaxy: formation; ACTIVE GALACTIC NUCLEI; SIMILAR-TO; 2; LUMINOUS INFRARED GALAXIES; HIGH-REDSHIFT QUASARS; LYMAN BREAK GALAXIES; MU-M SPECTROSCOPY; MOLECULAR GAS; FORMATION HISTORIES; EARLY UNIVERSE; SUBMILLIMETER GALAXIES;

D O I：

10.1088/0004-637X/772/2/112

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

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