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<div>Dear everyone,</div>
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<div>The next EO seminar will take place on Thursday the 28th at 13:15 in A5:1003.<br>
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<div>Our speaker is Daniel Kresse. Look forward to seeing you all there.</div>
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<div>Best,<br>
Haakon (on behalf of the organisers)<br>
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Title: </b>Post-explosion Hydrodynamics in 3D Neutrino-driven Supernova Models<br>
<b>Abstract:</b> Core-collapse supernovae (CCSNe) are among the brightest and most<br>
energetic events in the Universe. They mark the violent, explosive<br>
deaths of massive stars and give birth to neutron stars (NSs) and black<br>
holes (BHs), the most exotic compact objects known. After decades of<br>
intense research, the "neutrino-driven explosion mechanism" has<br>
meanwhile been established as the most promising and widely accepted<br>
paradigm for ("standard" Type II) CCSNe. Nevertheless, the question<br>
remained whether the neutrino-driven mechanism can explain the<br>
characteristic properties of observed supernovae, such as explosion<br>
energies, nucleosynthesis yields, and NS and BH kicks and spins. In my<br>
talk, I will address this question by presenting most recent results<br>
from a large set of three-dimensional (3D) neutrino-hydrodynamics<br>
simulations of the Garching group that extend over timescales of many<br>
seconds, i.e., significantly beyond the times when the explosions are<br>
launched. I will show that the highly non-linear post-explosion dynamics<br>
of 3D CCSN models with coexisting in- and outflows enable the<br>
long-lasting growth of the explosion energy, the efficient production of<br>
radioactive isotopes such as 44Ti and 56Ni, and the development of<br>
large-scale ejecta asymmetries, with important implications for NS and<br>
BH natal kicks and spins. Our results demonstrate that state-of-the-art<br>
3D models of neutrino-driven CCSNe — if evolved over sufficiently long<br>
timescales — can reproduce the typical explosion properties as deduced<br>
from astronomical observations.</div>
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