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HK: Fachverband Physik der Hadronen und Kerne

HK 62: Nukleare Astrophysik

HK 62.2: Vortrag

Freitag, 21. März 2014, 14:30–14:45, HZ 5

Effects of the nuclear symmetry energy in core-collapse supernovae — •Matthias Hempel¹, Tobias Fischer², Matthias Liebendörfer¹, Jürgen Schaffner-Bielich³, and Friedrich-Karl Thielemann¹ — ¹Universität Basel, Schweiz — ²University of Wroclaw, Poland — ³Universität Frankfurt

The nuclear symmetry energy is known to be an important quantity of the equation of state (EOS) of dense matter. In this presentation we analyze its effect in core-collapse supernovae by means of hydrodynamical simulations with detailed neutrino transport. We consider a representative selection of supernova EOS which we have developed recently, and compare their characteristic properties with experimental constraints. Besides effects on the supernova dynamics, we study implications on nucleosynthesis conditions in the so-called wind phase. Regarding the latter, we can conclude that the current constraints seem to allow only slightly neutron-rich conditions which would not result in a full r-process.