5 papers · 1 filter
Fast-spinning massive black holes from slowly rotating low-metallicity stars: Implications for GW231123
N. H. Ismail, N. Yusof, R. Hirschi +4
The origin of massive black holes in the early universe remains uncertain and still unexplored. Pop III stars are among the first stellar sources capable of producing such remnants…
The first 3D MHD core-collapse progenitors II: Rotation, magnetic-field amplification, and magnetic topology
Adam Griffiths, Miguel-Ángel Aloy, Martin Obergaulinger
The most energetic core-collapse supernovae are thought to arise from rapidly rotating, magnetised progenitors. However, the three-dimensional pre-collapse structure of their angul…
The first 3D MHD core-collapse progenitors I: General properties, convection and nuclear burning
Adam Griffiths, Miguel-Ángel Aloy, Martin Obergaulinger
The most energetic core-collapse supernovae are thought to arise from rapidly rotating, magnetised progenitors, yet the three-dimensional structure of their pre-collapse interior r…
The advanced evolution of massive stars: I. New reaction rates for carbon and oxygen nuclear reactions
T. Dumont, A. Bonhomme, A. Griffiths +9
The nuclear rates for reactions involving 12C and 16O are key to compute the energy release and nucleosynthesis of massive stars during their evolution. These rates shape the stell…
Evolving massive stars to core collapse with GENEC: Extension of equation of state, opacities and effective nuclear network
Adam Griffiths, Miguel-Á Aloy, Raphael Hirschi +6
Stars with initial mass above roughly 8 solar masses will evolve to form a core made of iron group elements at which point no further exothermic nuclear reactions between charged n…