Measuring AGN feedback: black hole kinetic luminosity outputs from high and low excitation radio galaxies

Andrew Richard Butler

Research output: ThesisDoctoral Thesis

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Abstract

Supermassive black holes associated with active galactic nuclei (AGN) affect galaxy evolution via radio-emitting jets that influence star formation (a process known as feedback). The XXL-S field was observed at 2.1 GHz with the Australia Telescope Compact Array for the purpose of measuring the evolution of feedback from high excitation radio galaxies (HERGs) and
low excitation radio galaxies (LERGs) therein. The LERGs display weak evolution, while the HERGs demonstrate stronger evolution, but the latter is weaker compared to previous HERG evolution measurements. This implies that feedback from HERGs is more prominent in the nearby universe than previously thought.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Thesis sponsors
Award date15 Mar 2019
DOIs
Publication statusUnpublished - 2019

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radio galaxies
active galactic nuclei
luminosity
output
kinetics
excitation
star formation
universe
telescopes
galaxies

Cite this

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title = "Measuring AGN feedback: black hole kinetic luminosity outputs from high and low excitation radio galaxies",
abstract = "Supermassive black holes associated with active galactic nuclei (AGN) affect galaxy evolution via radio-emitting jets that influence star formation (a process known as feedback). The XXL-S field was observed at 2.1 GHz with the Australia Telescope Compact Array for the purpose of measuring the evolution of feedback from high excitation radio galaxies (HERGs) and low excitation radio galaxies (LERGs) therein. The LERGs display weak evolution, while the HERGs demonstrate stronger evolution, but the latter is weaker compared to previous HERG evolution measurements. This implies that feedback from HERGs is more prominent in the nearby universe than previously thought.",
keywords = "Radio galaxies, Radio luminosity functions, ACTIVE GALACTIC NUCLEI, Radio surveys, Galaxy statistics, Galaxy evolution",
author = "Butler, {Andrew Richard}",
year = "2019",
doi = "10.26182/5ca59b75a9d57",
language = "English",
school = "The University of Western Australia",

}

Measuring AGN feedback: black hole kinetic luminosity outputs from high and low excitation radio galaxies. / Butler, Andrew Richard.

2019.

Research output: ThesisDoctoral Thesis

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PY - 2019

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N2 - Supermassive black holes associated with active galactic nuclei (AGN) affect galaxy evolution via radio-emitting jets that influence star formation (a process known as feedback). The XXL-S field was observed at 2.1 GHz with the Australia Telescope Compact Array for the purpose of measuring the evolution of feedback from high excitation radio galaxies (HERGs) and low excitation radio galaxies (LERGs) therein. The LERGs display weak evolution, while the HERGs demonstrate stronger evolution, but the latter is weaker compared to previous HERG evolution measurements. This implies that feedback from HERGs is more prominent in the nearby universe than previously thought.

AB - Supermassive black holes associated with active galactic nuclei (AGN) affect galaxy evolution via radio-emitting jets that influence star formation (a process known as feedback). The XXL-S field was observed at 2.1 GHz with the Australia Telescope Compact Array for the purpose of measuring the evolution of feedback from high excitation radio galaxies (HERGs) and low excitation radio galaxies (LERGs) therein. The LERGs display weak evolution, while the HERGs demonstrate stronger evolution, but the latter is weaker compared to previous HERG evolution measurements. This implies that feedback from HERGs is more prominent in the nearby universe than previously thought.

KW - Radio galaxies

KW - Radio luminosity functions

KW - ACTIVE GALACTIC NUCLEI

KW - Radio surveys

KW - Galaxy statistics

KW - Galaxy evolution

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DO - 10.26182/5ca59b75a9d57

M3 - Doctoral Thesis

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