# A multidimensional implementation of the Advanced Spectral neutrino Leakage scheme

@article{Gizzi2019AMI, title={A multidimensional implementation of the Advanced Spectral neutrino Leakage scheme}, author={D Gizzi and Evan P. O’Connor and Stephan Rosswog and Albino Perego and Rub{\'e}n M. Cabez{\'o}n and L Nativi}, journal={Monthly Notices of the Royal Astronomical Society}, year={2019} }

We present a new, multidimensional implementation of the Advanced Spectral Leakage (ASL) scheme with the purpose of modelling neutrino–matter interactions in neutron star mergers. A major challenge is the neutrino absorption in the semitransparent regime, which is responsible for driving winds from the merger remnant. The composition of such winds is crucial in the understanding of the electromagnetic emission in the recently observed macronova following GW170817. Compared to the original…

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## References

SHOWING 1-10 OF 76 REFERENCES

AN ADVANCED LEAKAGE SCHEME FOR NEUTRINO TREATMENT IN ASTROPHYSICAL SIMULATIONS

- Physics
- 2016

We present an Advanced Spectral Leakage (ASL) scheme to model neutrinos in the context of core-collapse supernovae (CCSNe) and compact binary mergers. Based on previous gray leakage schemes, the ASL…

Improved leakage-equilibration-absorption scheme (ileas) for neutrino physics in compact object mergers

- PhysicsMonthly Notices of the Royal Astronomical Society
- 2019

We present a new, computationally efficient, energy-integrated approximation for neutrino effects in hot and dense astrophysical environments such as supernova cores and compact binary mergers and…

Neutrino-driven winds from neutron star merger remnants

- Physics
- 2014

We present a detailed, three-dimensional hydrodynamic study of the neutrino-driven winds that emerge from the remnant of a neutron star merger. Our simulations are performed with the Newtonian,…

AN OPEN-SOURCE NEUTRINO RADIATION HYDRODYNAMICS CODE FOR CORE-COLLAPSE SUPERNOVAE

- Physics
- 2015

We present an open-source update to the spherically symmetric, general-relativistic hydrodynamics, core-collapse supernova (CCSN) code GR1D. The source code is available at http://www.GR1Dcode.org.…

The impact of different neutrino transport methods on multidimensional core-collapse supernova simulations

- PhysicsJournal of Physics G: Nuclear and Particle Physics
- 2018

Neutrinos play a crucial role in the core-collapse supernova (CCSN) explosion mechanism. The requirement of accurately calculating the transport of neutrinos makes simulations of the CCSN mechanism…

High‐resolution calculations of merging neutron stars – II. Neutrino emission

- Physics
- 2003

The remnant resulting from the merger of two neutron stars produces neutrinos in copious amounts. In this paper we present the neutrino emission results obtained via Newtonian, high-resolution…

THE PROGENITOR DEPENDENCE OF THE PREEXPLOSION NEUTRINO EMISSION IN CORE-COLLAPSE SUPERNOVAE

- Physics
- 2021

We perform spherically-symmetric general-relativistic simulations of core collapse and the postbounce preexplosion phase in 32 presupernova stellar models of solar metallicity with…

Core-collapse supernovae in the hall of mirrors

- PhysicsAstronomy & Astrophysics
- 2018

Context. Modeling core-collapse supernovae (SNe) with neutrino transport in three dimensions (3D) requires tremendous computing resources and some level of approximation. We present a first…

ON THE REQUIREMENTS FOR REALISTIC MODELING OF NEUTRINO TRANSPORT IN SIMULATIONS OF CORE-COLLAPSE SUPERNOVAE

- Physics
- 2012

We have conducted a series of numerical experiments with the spherically symmetric, general relativistic, neutrino radiation hydrodynamics code AGILE-BOLTZTRAN to examine the effects of several…

Two-dimensional Core-collapse Supernova Explosions Aided by General Relativity with Multidimensional Neutrino Transport

- Physics
- 2015

We present results from simulations of core-collapse supernovae in FLASH using a newly implemented multidimensional neutrino transport scheme and a newly implemented general relativistic (GR)…