The role of gas flows in galaxy evolution: insight from cosmological simulations

Ruby Wright

doi:10.26182/vyxt-yr39

The role of gas flows in galaxy evolution: insight from cosmological simulations

Ruby Wright

School of Physics, Mathematics and Computing

Research output: Thesis › Doctoral Thesis

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Abstract

This thesis uses state-of-the-art hydrodynamical simulations and novel analysis techniques to shed light on the gas flows that surround galaxies. We demonstrate that the rate and nature of halo-scale gas accretion is strongly influenced by galaxy-scale feedback (from both stars and active galactic nuclei); and also detangle the different mechanisms behind the observed depletion of gas in satellite galaxies. Our work suggests that the properties of the circum-galactic medium are particularly sensitive to how feedback is implemented, making it the ideal test-bed for assessing the accuracy of feedback models used in cosmological simulations.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Lagos Urbina, Claudia, Supervisor Power, Chris, Supervisor
Thesis sponsors	Australian Government Research Training Program
Award date	23 Aug 2022
DOIs	https://doi.org/10.26182/vyxt-yr39
Publication status	Unpublished - 2022

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10.26182/vyxt-yr39

THESIS - DOCTOR OF PHILOSOPHY - WRIGHT, Ruby - 2022
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2 Article

Revealing the physical properties of gas accreting to haloes in the EAGLE simulations
Wright, R. J., Lagos, C. D. P., Power, C. & Correa, C. A., 1 Jul 2021, In: Monthly Notices of the Royal Astronomical Society. 504, 4, p. 5702-5725 24 p.
Research output: Contribution to journal › Article › peer-review
29 Citations (Scopus)
The impact of stellar and AGN feedback on halo-scale baryonic and dark matter accretion in the eagle simulations
Wright, R. J., Lagos, C. D. P., Power, C. & Mitchell, P. D., 1 Oct 2020, In: Monthly Notices of the Royal Astronomical Society. 498, 2, p. 1668-1692 25 p.
Research output: Contribution to journal › Article › peer-review

Open Access
39 Citations (Scopus)

Cite this

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title = "The role of gas flows in galaxy evolution: insight from cosmological simulations",

abstract = "This thesis uses state-of-the-art hydrodynamical simulations and novel analysis techniques to shed light on the gas flows that surround galaxies. We demonstrate that the rate and nature of halo-scale gas accretion is strongly influenced by galaxy-scale feedback (from both stars and active galactic nuclei); and also detangle the different mechanisms behind the observed depletion of gas in satellite galaxies. Our work suggests that the properties of the circum-galactic medium are particularly sensitive to how feedback is implemented, making it the ideal test-bed for assessing the accuracy of feedback models used in cosmological simulations.",

keywords = "galaxy formation, galaxy evolution, computational methods",

author = "Ruby Wright",

year = "2022",

doi = "10.26182/vyxt-yr39",

language = "English",

school = "The University of Western Australia",

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N2 - This thesis uses state-of-the-art hydrodynamical simulations and novel analysis techniques to shed light on the gas flows that surround galaxies. We demonstrate that the rate and nature of halo-scale gas accretion is strongly influenced by galaxy-scale feedback (from both stars and active galactic nuclei); and also detangle the different mechanisms behind the observed depletion of gas in satellite galaxies. Our work suggests that the properties of the circum-galactic medium are particularly sensitive to how feedback is implemented, making it the ideal test-bed for assessing the accuracy of feedback models used in cosmological simulations.

AB - This thesis uses state-of-the-art hydrodynamical simulations and novel analysis techniques to shed light on the gas flows that surround galaxies. We demonstrate that the rate and nature of halo-scale gas accretion is strongly influenced by galaxy-scale feedback (from both stars and active galactic nuclei); and also detangle the different mechanisms behind the observed depletion of gas in satellite galaxies. Our work suggests that the properties of the circum-galactic medium are particularly sensitive to how feedback is implemented, making it the ideal test-bed for assessing the accuracy of feedback models used in cosmological simulations.

KW - galaxy formation

KW - galaxy evolution

KW - computational methods

U2 - 10.26182/vyxt-yr39

DO - 10.26182/vyxt-yr39

M3 - Doctoral Thesis

ER -

The role of gas flows in galaxy evolution: insight from cosmological simulations

Abstract

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Research output

Revealing the physical properties of gas accreting to haloes in the EAGLE simulations

The impact of stellar and AGN feedback on halo-scale baryonic and dark matter accretion in the eagle simulations

Cite this