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Understanding galaxies and their gas

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posted on 2024-07-12, 19:34 authored by Stephanie Kate Pointon
The circumgalactic medium is a vast halo of gas surrounding galaxies comprised of accreting gas from the intergalactic medium, outflows from stellar winds and recycled gas. Understanding how these gas flows enter and exit galaxies is key to our understanding of galaxy evolution. We have found that the metal content of accreting or outflowing gas is similar, suggesting that metallicity is not a useful tracer of accretion. We have also investigated group environments and found that there is less highly ionized gas and its kinematically narrower than isolated environments. Furthermore, the metallicity of group environments is similar to isolated environments.

History

Thesis type

  • Thesis (PhD by publication)

Thesis note

Presented in fulfillment of the requirements of the degree of Doctor of Philosophy 22nd of August, 2019, Faculty of Science and Technology, Swinburne University of Technology.

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Copyright © 2019 Stephanie Kate Pointon.

Supervisors

Glenn Kacprzak

Language

eng

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