Exploring the smallest galaxies: Accretion, chemical, and dynamical histories of Ultra-faint dwarfs

Sixteen Armstrong

doi:10.26182/q4d4-n724

Exploring the smallest galaxies: Accretion, chemical, and dynamical histories of Ultra-faint dwarfs

Sixteen Armstrong

School of Physics, Mathematics and Computing

Research output: Thesis › Doctoral Thesis

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Abstract

In this thesis, I discuss the evolutionary processes of ultra-faint dwarf galaxies (UFDs). First, I perform a kinematic study of the Local Group UFD and globular cluster population and examine the effects of a time-varying Galactic potential. Second, I simulate the effects of a neutron star merger on a UFD and attempt to reproduce the r-process enhancement seen in Reticulum II. Finally, I estimate the inner density profile of a simulated UFD and explore how different models affect the dark matter distribution.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Ludlow, Aaron, Supervisor Bekki, Kenji, Supervisor
Thesis sponsors	Australian Government Research Training Program
Award date	28 Sept 2023
DOIs	https://doi.org/10.26182/q4d4-n724
Publication status	Unpublished - 2023

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10.26182/q4d4-n724

THESIS - DOCTOR OF PHILOSOPHY - ARMSTRONG Sixteen Wings - 2023
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1 Article

The orbital evolution of UFDs and GCs in an evolving Galactic potential
Armstrong, B. M., Bekki, K. & Ludlow, A. D., Jan 2021, In: Monthly Notices of the Royal Astronomical Society. 500, 3, p. 2937-2957 21 p.
Research output: Contribution to journal › Article › peer-review

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11 Citations (Scopus)

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@phdthesis{2a1560add5424114ae0bb8bc08317ca0,

title = "Exploring the smallest galaxies: Accretion, chemical, and dynamical histories of Ultra-faint dwarfs",

abstract = "In this thesis, I discuss the evolutionary processes of ultra-faint dwarf galaxies (UFDs). First, I perform a kinematic study of the Local Group UFD and globular cluster population and examine the effects of a time-varying Galactic potential. Second, I simulate the effects of a neutron star merger on a UFD and attempt to reproduce the r-process enhancement seen in Reticulum II. Finally, I estimate the inner density profile of a simulated UFD and explore how different models affect the dark matter distribution.",

keywords = "astrophysics, ultra-faint dwarf galaxy, globular cluster, kinematics, galaxy simulation, Reticulum II, dark matter, europium",

author = "Sixteen Armstrong",

year = "2023",

doi = "10.26182/q4d4-n724",

language = "English",

school = "The University of Western Australia",

}

TY - BOOK

T1 - Exploring the smallest galaxies: Accretion, chemical, and dynamical histories of Ultra-faint dwarfs

AU - Armstrong, Sixteen

PY - 2023

Y1 - 2023

N2 - In this thesis, I discuss the evolutionary processes of ultra-faint dwarf galaxies (UFDs). First, I perform a kinematic study of the Local Group UFD and globular cluster population and examine the effects of a time-varying Galactic potential. Second, I simulate the effects of a neutron star merger on a UFD and attempt to reproduce the r-process enhancement seen in Reticulum II. Finally, I estimate the inner density profile of a simulated UFD and explore how different models affect the dark matter distribution.

AB - In this thesis, I discuss the evolutionary processes of ultra-faint dwarf galaxies (UFDs). First, I perform a kinematic study of the Local Group UFD and globular cluster population and examine the effects of a time-varying Galactic potential. Second, I simulate the effects of a neutron star merger on a UFD and attempt to reproduce the r-process enhancement seen in Reticulum II. Finally, I estimate the inner density profile of a simulated UFD and explore how different models affect the dark matter distribution.

KW - astrophysics

KW - ultra-faint dwarf galaxy

KW - globular cluster

KW - kinematics

KW - galaxy simulation

KW - Reticulum II

KW - dark matter

KW - europium

U2 - 10.26182/q4d4-n724

DO - 10.26182/q4d4-n724

M3 - Doctoral Thesis

ER -

Exploring the smallest galaxies: Accretion, chemical, and dynamical histories of Ultra-faint dwarfs

Abstract

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Research output

The orbital evolution of UFDs and GCs in an evolving Galactic potential

Cite this