Data · dataset · 2026
Exploring the diversity of Type Ibc supernovae with ATLAS
Listed in ZivaHub and Deakin Research Online and DMU Figshare — shown once because both records carry DOI 10.17034/32826158.v1
Type Ib and Type Ic supernovae are astrophysical transients resulting from the core collapse of envelope-stripped progenitor stars.
Description
Their evolution contributes substantially to kinetic, chemical, and radiative feedback, shaping their galactic environments. Throughout this thesis, I present spectrophotometric observations and modelling to investigate the properties and improve our understanding of Type Ibc supernovae.
To date, only a single supernova has been shown to have periodic signals in its optical light curve: SN 2022jli. In this thesis, I present the discovery and detailed spectrophotometric follow-up observations of this first-of-a-kind supernova. I consider a range of plausible explanations, including interaction between the nascent neutron star and a companion, ultimately favouring interaction of the SN ejecta with nested dust shells.
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SN 2022jli represents the strongest evidence to date for a binary origin of a Type Ic supernova. I present detailed observations of SN 2023zaw, a member of the emerging ultra-stripped class of supernovae. These SNe have low ejecta masses, originating from progenitor stars stripped by a neutron star companion.
I compare filtered photometry and (pseudo-)bolometric luminosities with a suite of models, finding evidence from the light curves of SN 2023zaw for the need for an additional, non-radioactive heating mechanism. Finally, expanding the scope to study the whole population, I have collated and analysed the largest systematic sample study of Type Ibc supernovae (N = 212 events). This analysis includes every SN Ibc discovered within a roughly seven-year time window and detected by the ATLAS survey.
Our analysis shows, that in a magnitude-limited regime, many SN Ibc exceed the theoretical upper limit on the luminosity. However, this discrepancy disappears in a volume-limited comparison (d < 100Mpc), suggesting that selection effects are important in this comparison. Within the sample, I identify a new ultra-stripped supernova, SN 2020ksa, discovered in the archival data.
Links
Where it is published
- DOI doi.org/10.17034/32826158.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/32826158 | 8 d ago | JSON v1 |
| Deakin Research Online | oai:figshare.com:article/32826158 | 8 d ago | JSON v1 |
| DMU Figshare | oai:figshare.com:article/32826158 | 8 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 |