A5082351170- Pulsars and Gravitational Waves Research
- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Magnetic confinement fusion research
- Astrophysics and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Laser-Plasma Interactions and Diagnostics
- International Science and Diplomacy
- History and Developments in Astronomy
Max Planck Society
2014-2017
Max Planck Institute for Astrophysics
2014-2017
Technical University of Munich
2014-2017
Aristotle University of Thessaloniki
2015
Université Libre de Bruxelles
2015
We present the first comprehensive study of r-process element nucleosynthesis in ejecta compact binary mergers (CBMs) and their relic black-hole (BH)-torus systems. The evolution BH-accretion tori is simulated for seconds with a Newtonian hydrodynamics code including viscosity effects, pseudo-Newtonian gravity rotating BHs, an energy-dependent two-moment closure scheme transport electron neutrinos antineutrinos. investigated cases are guided by relativistic double neutron star (NS-NS) NS-BH...
We derive constraints on the time-averaged event rate of neutron star–black hole (NS–BH) mergers by using estimates population-integrated production heavy rapid neutron-capture (r-process) elements with nuclear mass numbers A > 140 such events in comparison to Galactic repository these chemical species. Our are based relativistic hydrodynamical simulations convolved theoretical predictions binary population. This allows us determine a strict upper limit average NS–BH merger ∼6× 10−5 per...
We present a comprehensive study of r-process element nucleosynthesis in the ejecta compact binary mergers (CBMs) and their relic black-hole (BH)-torus systems. The evolution BH-accretion tori is simulated for seconds with Newtonian hydrodynamics code including viscosity effects, pseudo-Newtonian gravity rotating BHs, an energy-dependent two-moment closure scheme transport electron neutrinos antineutrinos. investigated cases are guided by relativistic double neutron star (NS-NS) NS-BH merger...
We present a comprehensive study of r-process element nucleosynthesis in the ejecta compact binary mergers (CBMs) and their relic black-hole (BH)-torus systems.The evolution BH-accretion tori is simulated for seconds with Newtonian hydrodynamics code including viscosity, pseudo-Newtonian gravity rotating BHs, an energy-dependent two-moment closure neutrino transport scheme.The investigated cases are guided by relativistic double neutron star (NS-NS) NS-BH merger models.Our analysis includes...
Despite significant progress in the recent years a robust identification of main astrophysical source or sources rapid-neutron-capture (r-) process is still lacking.Neutrino-driven winds ordinary core-collapse supernovae seem to be ruled out as r-process because their insufficiently low neutron densities and entropies.Magnetorotationally driven might provide conditions, but only if magnetic field strong enough (or builds up quickly enough) launch explosion on sufficiently short timescale;...