All Outputs (6)

Very massive star models: I. Impact of rotation and metallicity and comparisons with observations (2023)
Journal Article
Martinet, S., Meynet, G., Ekström, S., Georgy, C., & Hirschi, R. (2023). Very massive star models: I. Impact of rotation and metallicity and comparisons with observations. Astronomy & Astrophysics, 679, Article A137. https://doi.org/10.1051/0004-6361/202347514

Context. In addition to being spectacular objects, very massive stars (VMSs) are suspected to have a tremendous impact on their environment and on cosmic evolution in general. The nucleosynthesis both during their advanced stages and their final expl... Read More about Very massive star models: I. Impact of rotation and metallicity and comparisons with observations.

The Nuclear Reaction Network WinNet (2023)
Journal Article
Reichert, M., Winteler, C., Korobkin, O., Arcones, A., Bliss, J., Eichler, M., Frischknecht, U., Fröhlich, C., Hirschi, R., Jacobi, M., Kuske, J., Martínez-Pinedo, G., Martin, D., Mocelj, D., Rauscher, T., & Thielemann, F.-K. (2023). The Nuclear Reaction Network WinNet. The Astrophysical Journal Supplement, 268(2), Article 66. https://doi.org/10.3847/1538-4365/acf033

We present the state-of-the-art single-zone nuclear reaction network WinNet, which is capable of calculating the nucleosynthetic yields of a large variety of astrophysical environments and conditions. This ranges from the calculation of the primordia... Read More about The Nuclear Reaction Network WinNet.

Slow Neutron-Capture Process in Evolved Stars (2023)
Book Chapter
Hirschi, R. (2023). Slow Neutron-Capture Process in Evolved Stars. In Handbook of Nuclear Physics (3537-3571). Springer. https://doi.org/10.1007/978-981-19-6345-2_118

The slow neutron-capture process (s process) contributes to the production of roughly half of the elements heavier than iron. The main component of the s process takes place in the late phases (AGB phase) of low-mass stars and is the topic of most re... Read More about Slow Neutron-Capture Process in Evolved Stars.

Stellar wind yields of very massive stars (2023)
Journal Article
Higgins, E. R., Vink, J. S., Hirschi, R., Laird, A. M., & Sabhahit, G. N. (in press). Stellar wind yields of very massive stars. Monthly Notices of the Royal Astronomical Society, 526(1), 534–547. https://doi.org/10.1093/mnras/stad2537

The most massive stars provide an essential source of recycled material for young clusters and galaxies. While very massive stars (VMS, M>100 $\rm {\rm M}_{\odot }$) are relatively rare compared to O stars, they lose disproportionately large a... Read More about Stellar wind yields of very massive stars.

3D stellar evolution: hydrodynamic simulations of a complete burning phase in a massive star (2023)
Journal Article
Rizzuti, F., Hirschi, R., Arnett, W. D., Georgy, C., Meakin, C., Murphy, A. S., Rauscher, T., & Varma, V. (2023). 3D stellar evolution: hydrodynamic simulations of a complete burning phase in a massive star. Monthly Notices of the Royal Astronomical Society, 523(2), 2317-2328. https://doi.org/10.1093/mnras/stad1572

Our knowledge of stellar evolution is driven by one-dimensional (1D) simulations. 1D models, however, are severely limited by uncertainties on the exact behaviour of many multidimensional phenomena occurring inside stars, affecting their structure an... Read More about 3D stellar evolution: hydrodynamic simulations of a complete burning phase in a massive star.

Turbulence and nuclear reactions in 3D hydrodynamics simulations of massive stars (2023)
Journal Article
Rizzuti, F., Hirschi, R., Georgy, C., Arnett, D., Meakin, C., & Murphy, A. (2023). Turbulence and nuclear reactions in 3D hydrodynamics simulations of massive stars. EPJ Web of Conferences, 279, 05001. https://doi.org/10.1051/epjconf/202327905001

Our knowledge of massive star evolution and nucleosynthesis is limited by uncertainties related to multi-dimensional processes taking place in stellar interiors. Recently, theoretical works have started to improve 1D stellar evolution codes through t... Read More about Turbulence and nuclear reactions in 3D hydrodynamics simulations of massive stars.