Star formation in the outer disks of nearby galaxies NGC 2915 and M83

Sarah Bruzzese

    Research output: ThesisDoctoral Thesis

    170 Downloads (Pure)

    Abstract

    Outer-disk star formation commonly occurs in nearby spiral galaxies (∼30% of cases). However, our understanding of star formation is mostly based on observations of the brighter portions of galaxies and may not be applicable to outer-disks. I use images of young, high-mass, resolved stellar populations from the Hubble Space Telescope to probe outer-disk star formation in two galaxies NGC2915 and M83. Using these data, I develop a novel method to constrain the initial mass function, investigate the local star formation law and star formation thresholds and thus further our understanding of outer-disk star formation.
    Original languageEnglish
    QualificationDoctor of Philosophy
    Awarding Institution
    • The University of Western Australia
    Award date10 Aug 2016
    Publication statusUnpublished - 2016

    Fingerprint

    star formation
    galaxies
    spiral galaxies
    stellar mass
    Hubble Space Telescope
    thresholds
    probes

    Cite this

    @phdthesis{bb52641ce5d143c78dd38d230952e80e,
    title = "Star formation in the outer disks of nearby galaxies NGC 2915 and M83",
    abstract = "Outer-disk star formation commonly occurs in nearby spiral galaxies (∼30{\%} of cases). However, our understanding of star formation is mostly based on observations of the brighter portions of galaxies and may not be applicable to outer-disks. I use images of young, high-mass, resolved stellar populations from the Hubble Space Telescope to probe outer-disk star formation in two galaxies NGC2915 and M83. Using these data, I develop a novel method to constrain the initial mass function, investigate the local star formation law and star formation thresholds and thus further our understanding of outer-disk star formation.",
    keywords = "Star formation law, Outer disks, Initial mass function, Disk stability, Low-density star formation, Resolved stellar populations",
    author = "Sarah Bruzzese",
    year = "2016",
    language = "English",
    school = "The University of Western Australia",

    }

    Bruzzese, S 2016, 'Star formation in the outer disks of nearby galaxies NGC 2915 and M83', Doctor of Philosophy, The University of Western Australia.

    Star formation in the outer disks of nearby galaxies NGC 2915 and M83. / Bruzzese, Sarah.

    2016.

    Research output: ThesisDoctoral Thesis

    TY - THES

    T1 - Star formation in the outer disks of nearby galaxies NGC 2915 and M83

    AU - Bruzzese, Sarah

    PY - 2016

    Y1 - 2016

    N2 - Outer-disk star formation commonly occurs in nearby spiral galaxies (∼30% of cases). However, our understanding of star formation is mostly based on observations of the brighter portions of galaxies and may not be applicable to outer-disks. I use images of young, high-mass, resolved stellar populations from the Hubble Space Telescope to probe outer-disk star formation in two galaxies NGC2915 and M83. Using these data, I develop a novel method to constrain the initial mass function, investigate the local star formation law and star formation thresholds and thus further our understanding of outer-disk star formation.

    AB - Outer-disk star formation commonly occurs in nearby spiral galaxies (∼30% of cases). However, our understanding of star formation is mostly based on observations of the brighter portions of galaxies and may not be applicable to outer-disks. I use images of young, high-mass, resolved stellar populations from the Hubble Space Telescope to probe outer-disk star formation in two galaxies NGC2915 and M83. Using these data, I develop a novel method to constrain the initial mass function, investigate the local star formation law and star formation thresholds and thus further our understanding of outer-disk star formation.

    KW - Star formation law

    KW - Outer disks

    KW - Initial mass function

    KW - Disk stability

    KW - Low-density star formation

    KW - Resolved stellar populations

    M3 - Doctoral Thesis

    ER -