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PopII 1/2 stars: very high N14 and low O16 yields (2005)
Journal Article
Hirschi, R. (2005). PopII 1/2 stars: very high N14 and low O16 yields. Proceedings of the International Astronomical Union, 1(S228), https://doi.org/10.1017/S1743921305005922

Nine 20 Mo models were computed with metallicities ranging from solar, through $Z=10^{-5}$ ([Fe/H]=~-3.1) down to $Z=10^{-8}$ ([Fe/H]=~-6.1) and with initial rotational velocities between 0 and 600 km/s to study the impact of initial metallicity and... Read More about PopII 1/2 stars: very high N14 and low O16 yields.

Stellar evolution with rotation XIII: Predicted GRB rates at various Z (2005)
Journal Article
Hirschi, R., Meynet, G., & Maeder, A. (2005). Stellar evolution with rotation XIII: Predicted GRB rates at various Z. Astronomy & Astrophysics, 443(2), https://doi.org/10.1051/0004-6361%3A20053329

We present the evolution of rotation in models of massive single stars covering a wide range of masses and metallicities. These models reproduce very well observations during the early stages of the evolution (in particular WR populations and ratio b... Read More about Stellar evolution with rotation XIII: Predicted GRB rates at various Z.

Rotating massive stars: Pre-SN models and stellar yields at solar metallicity (2005)
Journal Article
Hirschi, R., Meynet, G., & Maeder, A. (2005). Rotating massive stars: Pre-SN models and stellar yields at solar metallicity. Nuclear Physics A, 758, 234-237. https://doi.org/10.1016/j.nuclphysa.2005.05.041

We present a new set of stellar yields obtained from rotating stellar models at solar metallicity covering the massive star range (9-120 solar masses). The stellar models were calculated with the latest version of the Geneva stellar evolution code de... Read More about Rotating massive stars: Pre-SN models and stellar yields at solar metallicity.

Dynamical shear instability (2004)
Journal Article
Hirschi, R., Maeder, A., & Meynet, G. (2004). Dynamical shear instability. Proceedings of the International Astronomical Union, 215, 510 - 511

The dynamical shear instability is an important mixing process in the advanced stages of the evolution of massive stars. We calculated different models of 15 Mo with an initial rotational velocity, v(rot,ini)= 300 km/s to investigate its efficiency.... Read More about Dynamical shear instability.

Yields of rotating stars at solar metallicity (2004)
Journal Article
Hirschi, R., Meynet, G., & Maeder, A. Yields of rotating stars at solar metallicity. https://doi.org/10.1051/0004-6361%3A20041554. Manuscript submitted for publication

We present a new set of stellar yields obtained from rotating stellar models at solar metallicity covering the massive star range (12-60 solar masses). The stellar models were calculated with the latest version of the Geneva stellar evolution code de... Read More about Yields of rotating stars at solar metallicity.

Stellar evolution with rotation XII: Pre-supernova models (2004)
Journal Article
Hirschi, R., Meynet, G., & Maeder, A. (2004). Stellar evolution with rotation XII: Pre-supernova models. Astronomy & Astrophysics, 425, 649-670. https://doi.org/10.1051/0004-6361%3A20041095

We describe the latest developments of the Geneva stellar evolution code in order to model the pre-supernova evolution of rotating massive stars. Rotating and non-rotating stellar models at solar metallicity with masses equal to 12, 15, 20, 25, 40 an... Read More about Stellar evolution with rotation XII: Pre-supernova models.

Evolution and Nucleosynthesis of Massive Stars
Conference Proceeding
Meynet, G., Maeder, A., Choplin, A., Takahashi, K., Ekström, S., Hirschi, R., …Eggenberger, P. (2017). Evolution and Nucleosynthesis of Massive Stars. . https://doi.org/10.7566/jpscp.14.010401

Massive stars are rapid nuclear reactors that play a key role in injecting new synthesized elements in the interstellar medium. Depending on the strengths of the stellar winds on the efficiency of mixing processes, the masses and the chemical composi... Read More about Evolution and Nucleosynthesis of Massive Stars.

Insights on the First Stars from CEMP-no Stars
Journal Article
Choplin, A., Meynet, G., Maeder, A., Hirschi, R., Ekström, S., & Chiappini, C. (2017). Insights on the First Stars from CEMP-no Stars. JPS Conference Proceedings, https://doi.org/10.7566/jpscp.14.020202

CEMP-no stars (Carbon-Enhanced metal-poor stars with no or few s- or r-elements) are long-lived low mass stars presenting a very low iron content and overabundances of carbon relatively to the sun. Their chemically peculiar abundance pattern could be... Read More about Insights on the First Stars from CEMP-no Stars.

Production Uncertainties of p-Nuclei in the γ-Process in Massive Stars Using a Monte Carlo Approach
Conference Proceeding
Rauscher, T., Nishimura, N., Hirschi, R., Cescutti, G., Murphy, A. S. J., & Heger, A. (2017). Production Uncertainties of p-Nuclei in the γ-Process in Massive Stars Using a Monte Carlo Approach. In Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016). https://doi.org/10.7566/jpscp.14.010509

Proton-rich nuclei, the so-called p-nuclei, are made in photodisintegration processes in outer shells of massive stars in the course of the final supernova explosion. Nuclear uncertainties in the production of these nuclei have been quantified in a M... Read More about Production Uncertainties of p-Nuclei in the γ-Process in Massive Stars Using a Monte Carlo Approach.