The Connection between Cold Gas Reservoirs and Morphology in Galaxies

Robin Cook

doi:10.26182/9kx6-by34

The Connection between Cold Gas Reservoirs and Morphology in Galaxies

Robin Cook

Research output: Thesis › Doctoral Thesis

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Abstract

This thesis explores the role of morphology in regulating cold gas reservoirs in galaxies by uniquely combining two-dimensional structural decompositions with observations of atomic hydrogen gas (HI) for an unprecedentedly large and unbiased sample of local galaxies. It is revealed that the bulge fractions of star-forming galaxies have a negligible impact on their average HI content. Additionally, the bulge fraction alone does not explain the suppression of star formation observed in high stellar mass galaxies, nor the population of extremely star-forming galaxies. This thesis introduces the application and verification of novel techniques necessary for future improvements in galaxy morphology.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Catinella, Barbara, Supervisor Cortese, Luca, Supervisor Robotham, Aaron, Supervisor
Thesis sponsors	Australian Government Research Training Program
Award date	18 Dec 2020
DOIs	https://doi.org/10.26182/9kx6-by34
Publication status	Unpublished - 2020

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10.26182/9kx6-by34

THESIS - DOCTOR OF PHILOSOPHY - COOK, Robin Harley Winoc - 2021 - Pt1
THESIS - DOCTOR OF PHILOSOPHY - COOK, Robin Harley Winoc - 2021 - Pt2
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Cite this

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title = "The Connection between Cold Gas Reservoirs and Morphology in Galaxies",

abstract = "This thesis explores the role of morphology in regulating cold gas reservoirs in galaxies by uniquely combining two-dimensional structural decompositions with observations of atomic hydrogen gas (HI) for an unprecedentedly large and unbiased sample of local galaxies. It is revealed that the bulge fractions of star-forming galaxies have a negligible impact on their average HI content. Additionally, the bulge fraction alone does not explain the suppression of star formation observed in high stellar mass galaxies, nor the population of extremely star-forming galaxies. This thesis introduces the application and verification of novel techniques necessary for future improvements in galaxy morphology. ",

keywords = "Galaxy Morphology, Observational Astronomy, Cold Gas Reservoirs, Star Formation, Galaxy formation",

author = "Robin Cook",

year = "2020",

doi = "10.26182/9kx6-by34",

language = "English",

school = "The University of Western Australia",

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AU - Cook, Robin

PY - 2020

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N2 - This thesis explores the role of morphology in regulating cold gas reservoirs in galaxies by uniquely combining two-dimensional structural decompositions with observations of atomic hydrogen gas (HI) for an unprecedentedly large and unbiased sample of local galaxies. It is revealed that the bulge fractions of star-forming galaxies have a negligible impact on their average HI content. Additionally, the bulge fraction alone does not explain the suppression of star formation observed in high stellar mass galaxies, nor the population of extremely star-forming galaxies. This thesis introduces the application and verification of novel techniques necessary for future improvements in galaxy morphology.

AB - This thesis explores the role of morphology in regulating cold gas reservoirs in galaxies by uniquely combining two-dimensional structural decompositions with observations of atomic hydrogen gas (HI) for an unprecedentedly large and unbiased sample of local galaxies. It is revealed that the bulge fractions of star-forming galaxies have a negligible impact on their average HI content. Additionally, the bulge fraction alone does not explain the suppression of star formation observed in high stellar mass galaxies, nor the population of extremely star-forming galaxies. This thesis introduces the application and verification of novel techniques necessary for future improvements in galaxy morphology.

KW - Galaxy Morphology

KW - Observational Astronomy

KW - Cold Gas Reservoirs

KW - Star Formation

KW - Galaxy formation

U2 - 10.26182/9kx6-by34

DO - 10.26182/9kx6-by34

M3 - Doctoral Thesis

ER -

The Connection between Cold Gas Reservoirs and Morphology in Galaxies

Abstract

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