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Toward an efficient modeling of neutrino-driven winds in binary neutron star mergers

Published online by Cambridge University Press:  27 February 2023

Davide Gizzi Open the ORCID record for Davide Gizzi [Opens in a new window] ,
Stephan Rosswog Open the ORCID record for Stephan Rosswog [Opens in a new window] ,
Evan O’Connor ,
Albino Perego  and
Christoffer Lundman
Davide Gizzi*
Affiliation:
Department of Astronomy and Oskar Klein Centre, Stockholm University, Stockholm, Sweden
Stephan Rosswog
Affiliation:
Department of Astronomy and Oskar Klein Centre, Stockholm University, Stockholm, Sweden
Evan O’Connor
Affiliation:
Department of Astronomy and Oskar Klein Centre, Stockholm University, Stockholm, Sweden
Albino Perego
Affiliation:
Dipartimento di Fisica, Università degli Studi di Trento, Trento, Italy INFN-TIFPA, Trento Institute for Fundamental Physics and Applications, Trento, Italy
Christoffer Lundman
Affiliation:
Department of Astronomy and Oskar Klein Centre, Stockholm University, Stockholm, Sweden
*
email: davide.gizzi@astro.su.se
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Abstract

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We present a mesh-free, neutrino transport approximation called Advanced Spectral Leakage, designed as a powerful tool for simulations of neutrino-driven winds in binary neutron star mergers with the Smoothed-Particle Hydrodynamics. We post-process a number of snapshots and compare relevant neutrino quantities with respect to computationally more expensive transport approaches. We find that the scheme recovers neutrino luminosities and mean energies within 25% accuracy and is computationally more efficient.

Keywords

neutrinosradiative transferhydrodynamicsstars: neutron
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S363: Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution , June 2020 , pp. 354 - 355
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

References

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