Description
Modeling, observations, and theory of Core-collapse
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Matthias Liebendoerfer (University of Basel)13/08/2019, 09:00Oral Contribution
Simulations of Core-Collapse Supernovae rely on four important ingredients: An efficient and reasonably accurate implementation of equation of state and reaction rates, a spatially and temporally well-resolved evolution of shock-roof magneto-hydrodynamics, a multidimensional parallel implementation of neutrino transport approximations with a well-defined pinch of relativistic effects and...
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Mr David Vartanyan (Princeton)13/08/2019, 10:15Oral Contribution
Using Fornax, we have provided a broad suite of almost a dozen high-fidelity 3D simulations of core-collapse supernovae, spanning 9 $-$ 60 M$_{\odot}$ in progenitor mass. Such a plethora of simulations, many through one second postbounce, allows us to probe the detailed dependence of explosion outcome on progenitor profile, grid resolution, and neutrino microphysics as well as study emergent...
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Takami Kuroda (Institut für Kernphysik, Technische Universität Darmstadt)13/08/2019, 11:00Oral Contribution
We will report fully relativistic CCSN simulations of 20Msun progenitor star with M1 neutrino transport. To explore the role of magnetic field, particularly in the explosion dynamics and in the explosive nucleosynthesis, we calculated several models w/ and w/o rotation and magnetic field. Regarding the dynamics, we found a bipolar outflow in strongly magnetized model, while oblate like...
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Akira Harada (ICRR)13/08/2019, 11:30Oral Contribution
In this talk, I would like to report the recent results of the multi-dimensional core-collapse simulations with the Boltzmann-radiation-hydrodynamics code, which solves the Boltzmann equations for neutrino transport directly. The neutrino transport is an important ingredient of the core-collapse supernova (CCSN) simulations since the neutrino heating plays a crucial role in the explosion...
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Michael Pajkos (Michigan State University)13/08/2019, 14:00Oral Contribution
Numerical simulations of core collapse supernovae (CCSNe) must balance numerical accuracy with computational cost in order to produce numerous, high-fidelity simulations. The FLASH code architecture leverages advanced neutrino treatments and a general relativistic effective potential (GREP) to efficiently simulate CCSNe. These explosive, high energy events are prolific sources of...
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2. A pulsar-runaway-pair from a nearby supernova about 1.8 Myr ago that ejected 60-Fe found on EarthProf. Ralph Neuhaeuser (AIU U Jena)13/08/2019, 14:30Oral Contribution
The detection of 1.5-3.2 Myr 60-Fe on Earth indicates recent nearby core-collapse supernovae.
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For supernovae in multiple stars, the primary stars become neutron stars, while former
companions can get unbound (runaway stars). By tracing back the space motion of runaway
and neutron stars to the nearest young (about 16 Myr) association of massive stars
(Scorpius-Centaurus-Lupus), we found... -
Prof. Qiuhe Peng (Nanjing University)13/08/2019, 15:30Oral Contribution
1) A unusually strong radial magnetic field detected near our Galactic Center (2013) is consistent with the prediction from our model of supermassive object with magnetic monopoles (MM) ( Peng and Chou 2001). The important implications of the unusually strong radial magnetic field near the GC are: a) A strong evidence of the existence of MM; b) The black hole model of the suppermassive...
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