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Feedback by supermassive black holes in galaxy evolution: Impacts of accretion and outflows on the star formation rate

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Raouf, M, Silk, J, Shabala, SS ORCID: 0000-0001-5064-0493, Mamon, GA, Croton, DJ, Khosroshahi, HG and Beckmann, RS 2019 , 'Feedback by supermassive black holes in galaxy evolution: Impacts of accretion and outflows on the star formation rate' , Monthly Notices of the Royal Astronomical Society, vol. 486, no. 2 , pp. 1509-1522 , doi: 10.1093/mnras/stz907.

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Abstract

We describe a physical model of the outflows produced as a result of gas accretion on to a black hole, and the resultant changes to star formation rates and efficiencies in galaxies, using the RADIO-SAGE semi-analytic galaxy formation model. We show that the ratio of outflow rate to SFR of galaxies is mainly driven by black hole mass and virial halo mass, and show that the SFR is higher than the outflow rate at low black hole masses. The model consistently reproduces the observed evolution of star formation rate density from

Item Type: Article
Authors/Creators:Raouf, M and Silk, J and Shabala, SS and Mamon, GA and Croton, DJ and Khosroshahi, HG and Beckmann, RS
Keywords: galaxies: active – galaxies: evolution – galaxies: formation – galaxies: general – galaxies: haloes – galaxies: star formation
Journal or Publication Title: Monthly Notices of the Royal Astronomical Society
Publisher: Blackwell Publishing Ltd
ISSN: 0035-8711
DOI / ID Number: 10.1093/mnras/stz907
Copyright Information:

This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2019 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

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