Zobrazeno 1 - 10
of 203
pro vyhledávání: '"Schnetter, E."'
We present a first study of the progenitor star dependence of the three-dimensional (3D) neutrino mechanism of core-collapse supernovae. We employ full 3D general-relativistic multi-group neutrino radiation-hydrodynamics and simulate the post-bounce
Externí odkaz:
http://arxiv.org/abs/1712.01304
Autor:
Abdikamalov, E., Ott, C. D., Radice, D., Roberts, L. F., Haas, R., Reisswig, C., Moesta, P., Klion, H., Schnetter, E.
We conduct a series of numerical experiments into the nature of three-dimensional (3D) hydrodynamics in the postbounce stalled-shock phase of core-collapse supernovae using 3D general-relativistic hydrodynamic simulations of a $27$-$M_\odot$ progenit
Externí odkaz:
http://arxiv.org/abs/1409.7078
Autor:
Mösta, P., Richers, S., Ott, C. D., Haas, R., Piro, A. L., Boydstun, K., Abdikamalov, E., Reisswig, C., Schnetter, E.
Publikováno v:
Astrophys.J. 785 (2014) L29
We present results of new three-dimensional (3D) general-relativistic magnetohydrodynamic simulations of rapidly rotating strongly magnetized core collapse. These simulations are the first of their kind and include a microphysical finite-temperature
Externí odkaz:
http://arxiv.org/abs/1403.1230
We study the collapse of rapidly rotating supermassive stars that may have formed in the early Universe. By self-consistently simulating the dynamics from the onset of collapse using three-dimensional general-relativistic hydrodynamics with fully dyn
Externí odkaz:
http://arxiv.org/abs/1304.7787
Publikováno v:
PhysRevD 87 064023 2013
We present a new three-dimensional general-relativistic hydrodynamic evolution scheme coupled to dynamical spacetime evolutions which is capable of efficiently simulating stellar collapse, isolated neutron stars, black hole formation, and binary neut
Externí odkaz:
http://arxiv.org/abs/1212.1191
Autor:
Ott, C. D., Abdikamalov, E., Moesta, P., Haas, R., Drasco, S., O'Connor, E., Reisswig, C., Meakin, C., Schnetter, E.
We study the three-dimensional (3D) hydrodynamics of the post-core-bounce phase of the collapse of a 27-solar-mass star and pay special attention to the development of the standing accretion shock instability (SASI) and neutrino-driven convection. To
Externí odkaz:
http://arxiv.org/abs/1210.6674
Autor:
Korobkin, O., Abdikamalov, E., Stergioulas, N., Schnetter, E., Zink, B., Rosswog, S., Ott, C. D.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 431, Issue 1, pp.349-354 (2013)
When an accretion disk falls prey to the runaway instability, a large portion of its mass is devoured by the black hole within a few dynamical times. Despite decades of effort, it is still unclear under what conditions such an instability can occur.
Externí odkaz:
http://arxiv.org/abs/1210.1214
Autor:
Ott, C. D., Abdikamalov, E., O'Connor, E., Reisswig, C., Haas, R., Kalmus, P., Drasco, S., Burrows, A., Schnetter, E.
Publikováno v:
Phys. Rev. D. 86, 024026 (2012)
We present results from a new set of 3D general-relativistic hydrodynamic simulations of rotating iron core collapse. We assume octant symmetry and focus on axisymmetric collapse, bounce, the early postbounce evolution, and the associated gravitation
Externí odkaz:
http://arxiv.org/abs/1204.0512
Autor:
Ott, C. D., Reisswig, C., Schnetter, E., O'Connor, E., Sperhake, U., Loeffler, F., Diener, P., Abdikamalov, E., Hawke, I., Burrows, A.
Publikováno v:
Phys.Rev.Lett.106:161103,2011
We perform 3+1 general relativistic simulations of rotating core collapse in the context of the collapsar model for long gamma-ray bursts. We employ a realistic progenitor, rotation based on results of stellar evolution calculations, and a simplified
Externí odkaz:
http://arxiv.org/abs/1012.1853
Core-collapse supernovae are among Nature's most energetic events. They mark the end of massive star evolution and pollute the interstellar medium with the life-enabling ashes of thermonuclear burning. Despite their importance for the evolution of ga
Externí odkaz:
http://arxiv.org/abs/0907.4043