Angular momentum and atomic gas: their connection in the local Universe in observations and simulations

Jennifer Hardwick

Research output: ThesisDoctoral Thesis

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Abstract

This thesis focuses on nearby galaxies from the xGASS survey and investigates the relationship between their angular momentum (j) and atomic gas content (f_atm). We find the j-mass relation slope depends on the sample's distribution of morphologies and show that f_atm is the strongest correlated parameter with this relations scatter. Despite the Obreschkow et al. 2016 model making similar predictions, we find our data deviates from its predictions. Instead, at fixed f_atm, the j vs. M slope is shallower than predicted. We confirm these findings using EAGLE and IllustrisTNG simulations.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Supervisors/Advisors
  • Cortese, Luca, Supervisor
  • Obreschkow, Danail, Supervisor
Thesis sponsors
Award date14 Mar 2024
DOIs
Publication statusUnpublished - 2023

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