Physics of Core-Collapse Supernovae in Three Dimensions: a Sneak Preview

By Hans-Thomas Janka, T. Melson, A. S. M. Astrophysics, Garching, Physik Dept., Tum. 2016

356 citations recorded by the source corpus.

Nonspherical mass motions are a generic feature of core-collapse supernovae, and hydrodynamic instabilities play a crucial role in the explosion mechanism. The first successful neutrino-driven explosions could be obtained with self-consistent, first-principles simulations in three spatial dimensions. But three-dimensional (3D) models tend to be less prone to explosion than the corresponding axisymmetric two-dimensional (2D) ones. The reason is that 3D turbulence leads to energy cascading from large to small spatial scales, the inverse of the 2D case, thus disfavoring the growth of buoyant plumes on the largest scales. Unless the inertia to explode simply reflects a lack of sufficient resolution in relevant regions, some important component of robust and sufficiently energetic neutrino-powered explosions may still be missing. Such a deficit could be associated with progenitor properties such as rotation, magnetic fields, or precollapse perturbations, or with microphysics that could cause enhancement of neu...

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c2b8b2350b37bab1ff43ec07e932b8b4420db6df

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Citations in the corpus

A successful 3D core-collapse supernova explosion model (2018, neutral): “H E ] 1 3 Se p Burrows (2013), Müller (2016), and Janka et al. (2016).”
Supernova simulations from a 3D progenitor model - Impact of perturbations and evolution of explosion properties (2017, methodology): “…employing various algorithms for multi-group neutrino transport ranging from the very rigorous Vertex (Hanke et al. 2013; Melson et al. 2015a,b; Janka et al. 2016) and Chimera (Lentz et al. 2015) models to more approximate methods (Takiwaki et al. 2012, 2014, 2016; Müller 2015; Roberts et al.…”
Constraining the Neutron Star Mass–Radius Relation and Dense Matter Equation of State with NICER. I. The Millisecond Pulsar X-Ray Data Set (2019, background): “…are highly sensitive to the interior structure of NSs (Shibata & Taniguchi 2011; Faber & Rasio 2012; Del Pozzo et al. 2013; Read et al. 2013; Lackey et al. 2014; Kumar & Zhang 2015; Rosswog 2015; Bauswein et al. 2016; Fernández & Metzger 2016; Janka et al. 2016; Oertel et al. 2017; Shibata 2016).”
Three-dimensional simulations of neutrino-driven core-collapse supernovae from low-mass single and binary star progenitors (2018, background): “In the last few years, however, 3D first-principle models of neutrino-driven explosions have become increasingly successful (see the reviews of Müller 2016; Janka et al. 2016).”
The Status of Multi-Dimensional Core-Collapse Supernova Models (2016, methodology): “The reconstruction method, special tweaks for hydrostatic equilibrium (or an the lack of such a treatment), as well as the grid geometry and grid-induced perturbations (Janka et al. 2016; Roberts et al. 2016) also affect the behaviour and resolution-dependence of the simulated turbulence.”
What can be learned from a future supernova neutrino detection (2017, background): “The review by Janka, Melson and Summa [12] focuses upon the simulations while the review by Scholberg [13] focuses upon detection.”
Neutron Star Kicks by the Gravitational Tug-boat Mechanism in Asymmetric Supernova Explosions: Progenitor and Explosion Dependence (2016, background): “If rotation is present in the stellar core, the LESA emission dipole is oriented parallel to the rotation axis (Janka et al. 2016).”
Exploring Fundamentally Three-dimensional Phenomena in High-fidelity Simulations of Core-collapse Supernovae (2018, methodology): “Since Tamborra et al. (2014), the LESA has been reported in all 3D models from the Garching collaboration using the PROMETHEUS-VERTEX code (Janka et al. 2016) but has never been conclusively demonstrated by an independent source.”