Star formation and destruction in the local Universe

Fiona Audcent-Ross

Research output: ThesisDoctoral Thesis

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Abstract

For the first time Ha and FUV observations from a well-characterised HI-selected sample are used to quantify the star formation density (SFD) of the local Universe and to probe a fundamental supernovae characteristic: progenitor mass. Despite large variations between galaxies, I obtained near-identical dust-corrected Ha- and FUV-derived SFD values; low Ha/FUV flux ratios of low HI mass or low luminosity galaxies are offset, on average, by enhanced ratios from galaxies with high HI masses or high luminosities. These trends suggest possible stellar Initial Mass Function variations at the extreme end of this parameter space.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Supervisors/Advisors
  • Meurer, Gerhardt, Supervisor
  • Wong, Ivy, Supervisor
  • Driver, Simon, Supervisor
Thesis sponsors
Award date14 Jun 2021
DOIs
Publication statusUnpublished - 2021

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