Data · dataset · 2026
Theoretical studies of massive stars near the Eddington limit
Listed in ZivaHub and Deakin Research Online and DMU Figshare — shown once because both records carry DOI 10.17034/32638881.v1
Massive stars form an integral part of many astrophysical research fields.
Description
Their continuous winds and violent supernova explosions have a direct impact on the dynamic and chemical evolution of galaxies. Furthermore, massive stars leave behind remnants such as neutron stars or black holes, thus contributing significantly to gravitational wave studies.
Despite their importance to astrophysics, massive star modelling is plagued by inherent uncertainties due to the uncertain physics of mass loss and interior mixing, that challenge our understanding of these objects.<br><br>Of particular interest are the massive stars close to radiative instability called the Eddington limit and how that impacts their evolution and end-fates. In this thesis, I compute stellar evolution models as well as hydro-dynamically consistent wind models of massive stars close to their Eddington limit.
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The Eddington limit in the envelopes of luminous red supergiants is examined in chapter 3 following the recent discovery of a potential metallicity independent Humphreys-Davidson limit. The thesis also presents a new mass-loss framework based on the concept of transition mass loss from Vink and Gräfener (2012) which is tailored to study the evolution of very massive stars in different metallicity environments (chapters 4 - 6).
Grids of single massive star models up to 500 𝑀⊙ are presented that implement optically-thick wind physics with predictions for their end-fates and a possible explanation for the apparently low incidence of pair-instability supernovae in the local Universe.<br><br>Chapters 1 and 2 provide the necessary pre-requisite material for the research chapters, with conclusions and future work outlined in chapter 7.<br>
Links
Where it is published
- DOI doi.org/10.17034/32638881.v1 ↗
DOI / persistent id · from zivahub uct ac za
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from zivahub uct ac za
Topics
Provenance · 3 source records, 7 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ZivaHub | oai:figshare.com:article/32638881 | 13 d ago | JSON v1 |
| Deakin Research Online | oai:figshare.com:article/32638881 | 13 d ago | JSON v1 |
| DMU Figshare | oai:figshare.com:article/32638881 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:earth-environmental | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| description | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/description |
| license_text | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| publication_date | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| title | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/title |