Angular momentum evolution in progenitors of hydrogen-deficient core-collapse supernovae
| Main Author: | Gilkis, Avishai |
|---|---|
| Format: | info Proceeding |
| Bahasa: | eng |
| Terbitan: |
, 2018
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/1471550 |
Daftar Isi:
- Massive stars are observed to rotate rapidly early in their lives, and this rotation significantly affects their evolution, as well as their final fate. Multi-dimensional hydrodynamic simulations show the decisive effects of rapid rotation on the core-collapse dynamics, which might help explain the diversity of energetic transients accompanying the evolutionary end point of massive stars. Still, several uncertainties in modelling the evolution of massive stars make it difficult to predict the angular momentum profile within the star during its final stages leading to iron core collapse. The most notable uncertainties relevant for rotation are the effects of magnetic fields, and interactions with a companion, with most massive stars being members of high multiplicity systems. I discuss the angular momentum evolution in detailed models of massive binaries, including tidal interactions and mass transfer. These models represent progenitors of core-collapse supernovae, specifically types Ib/c and IIb where hydrogen has been removed, and can also be tested against observed systems with strong indications of mass transfer in their past.
- The author gratefully acknowledges the support of the Blavatnik Family Foundation.