Browsing University of Hertfordshire by Author "Arcones, A."

Now showing items 1-7 of 7

    • The Impact of Fission on R-Process Calculations 

      Eichler, M.; Arcones, A.; Käppeli, R.; Korobkin, O.; Liebendörfer, M.; Martinez-Pinedo, G.; Panov, I. V.; Rauscher, T.; Rosswog, S.; Thielemann, F. K.; Winteler, C. (2016-01-05)
      We have performed r-process calculations in neutron star mergers (NSM) and jets of magnetohydrodynamically driven (MHD) supernovae. In these very neutron-rich environments the fission model of heavy nuclei has an impact ...

    • Network calculations for r-process nucleosynthesis 

      Petermann, I.; Martinez-Pinedo, G.; Arcones, A.; Hix, W. R.; Kelic, A.; Langanke, K.; Panov, I.; Rauscher, T.; Schmidt, K-H; Thielemann, Friedrich-Karl; Zinner, N. (IOP Publishing Ltd., 2010)
      The r-process is known to be responsible for the synthesis of about half of the elements heavier than iron, nevertheless its astrophysical site has not yet been clearly ascertained, but observations indicate that at least ...

    • The Nuclear Reaction Network WinNet 

      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. (2023-10-11)
      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 ...

    • Probing the Production of Actinides under Different r-process Conditions 

      Eichler, M.; Sayar, W.; Arcones, A.; Rauscher, T. (2019-07-01)
      Several extremely metal-poor stars are known to have an enhanced thorium abundance. These actinide-boost stars have likely inherited material from an r-process that operated under different conditions than the r-process ...

    • The Role of Fission in Neutron Star Mergers and Its Impact on the r-Process Peaks 

      Eichler, M.; Arcones, A.; Kelic, A.; Korobkin, O.; Langanke, K.; Marketin, T.; Martinez-Pinedo, G.; Panov, I.; Rauscher, T.; Rosswog, S.; Winteler, C.; Zinner, N. T.; Thielemann, F. K. (2015-07-15)
      Comparing observational abundance features with nucleosynthesis predictions of stellar evolution or explosion simulations, we can scrutinize two aspects: (a) the conditions in the astrophysical production site and (b) the ...

    • The role of fission on neutron star mergers and its impact on the r-process peaks 

      Eichler, M.; Arcones, A.; Kelic, A.; Korobkin, O.; Langanke, K.; Marketin, T.; Martinez-Pinedo, G.; Panov, I.; Rauscher, T.; Rosswog, S.; Winteler, C.; Zinner, N. T.; Thielemann, F. K. (American Institute of Physics (AIP), 2016-06-21)
      The comparison between observational abundance features and those obtained from nucleosynthesis predictions of stellar evolution and/or explosion simulations can scrutinize two aspects: (a) the conditions in the astrophysical ...

    • What are the astrophysical sites for the r-process and the production of heavy elements? 

      Thielemann, Friedrich-Karl; Arcones, A.; Kaeppeli, R.; Liebendoerfer, M.; Rauscher, T.; Winteler, C.; Froehlich, C.; Dillmann, I.; Fischer, T.; Martinez-Pinedo, G.; Langanke, K.; Farouqi, K.; Kratz, K. -L.; Panov, I.; Korneev, I. K. (2011-04)
      This article addresses three of the four nucleosynthesis processes involved in producing heavy nuclei beyond Fe (with a main focus on the r-process). Opposite to the fourth process (the s-process), which operates in stellar ...