Luca Sciarini
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View article: Reverse mass transfer and rejuvenation in the massive contact system
Reverse mass transfer and rejuvenation in the massive contact system Open
Context. Numerous studies have established that in main-sequence binary systems, mass transfer generally proceeds from the initially more massive star to its less massive companion, thereby inducing rejuvenation in the latter. However, in …
View article: Detailed simulations of massive hierarchical triple star systems
Detailed simulations of massive hierarchical triple star systems Open
Context. Recent observations estimate that approximately 30% of early B- and O-type stars are found in triple systems. To date, the evolution of triple star systems has mainly been modeled using fast stellar codes. The accuracy of these co…
View article: Evolving massive stars to core collapse with GENEC: Extension of equation of state, opacities and effective nuclear network
Evolving massive stars to core collapse with GENEC: Extension of equation of state, opacities and effective nuclear network Open
Context. Stars with initial mass above roughly 8 M ⊙ will evolve to form a core made of iron group elements, at which point no further exothermic nuclear reactions between charged nuclei may prevent the core collapse. Electron capture, neu…
View article: Grids of stellar models with rotation
Grids of stellar models with rotation Open
Context. Grids of stellar evolution models with rotation using the Geneva stellar evolution code (G ENEC ) have been published for a wide range of metallicities. Aims. We introduce the last remaining grid of G ENEC models, with a metallici…
View article: Grids of stellar models with rotation VIII: Models from 1.7 to 500 $M_\odot$ at metallicity $Z = 10^{-5}$
Grids of stellar models with rotation VIII: Models from 1.7 to 500 $M_\odot$ at metallicity $Z = 10^{-5}$ Open
Grids of stellar evolution models with rotation using the Geneva stellar evolution code (Genec) have been published for a wide range of metallicities. We introduce the last remaining grid of Genec models, with a metallicity of $Z=10^{-5}$.…
View article: Rapidly rotating Population III stellar models as a source of primary nitrogen
Rapidly rotating Population III stellar models as a source of primary nitrogen Open
Context. The first stars might have been fast rotators. This would have important consequences for their radiative, mechanical, and chemical feedback. Aims. We discuss the impact of fast initial rotation on the evolution of massive Populat…
View article: Rapidly rotating Population III stellar models as a source of primary nitrogen
Rapidly rotating Population III stellar models as a source of primary nitrogen Open
The first stars might have been fast rotators. This would have important consequences for their radiative, mechanical and chemical feedback. We discuss the impact of fast initial rotation on the evolution of massive Population III models a…
View article: Dynamical tides in binaries: Inconsistencies in the implementation of Zahn's prescription
Dynamical tides in binaries: Inconsistencies in the implementation of Zahn's prescription Open
Binary evolution codes are essential tools to help in understanding the evolution of binary systems. They contain a great deal of physics, for example stellar evolution, stellar interactions, mass transfer, tides, orbital evolution. Since …
View article: Dynamical tides in binaries: Inconsistencies in the implementation of Zahn’s prescription
Dynamical tides in binaries: Inconsistencies in the implementation of Zahn’s prescription Open
Binary evolution codes are essential tools to help in understanding the evolution of binary systems. They contain a great deal of physics, for example stellar evolution, stellar interactions, mass transfer, tides, orbital evolution. Since …