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MICRA2019 - Microphysics In Computational Relativistic Astrophysics

12–16 Aug 2019
Jena FSU
Europe/Berlin timezone

Session

Neutrinos

Nu
12 Aug 2019, 09:00
Abbeanum-Ground floor-HS1 - Hörsaal 1 (Jena FSU)

Abbeanum-Ground floor-HS1 - Hörsaal 1

Jena FSU

Fröbelstieg 1, 07743 Jena

Description

All things Neutrinos, Neutrino Oscillations, transport, and interactions

Presentation materials

There are no materials yet.

  1. 3. Neutrinos in/from supernovae
    Jim Kneller (NC State University)
    12/08/2019, 09:00
    Oral Contribution

    The behavior of neutrinos in core-collapse supernovae is very different from their usual role as ephemeral larcenists. Neutrinos are the principle mechanism by which energy and lepton number are transported within the explosion, while core-collapse supernovae produce neutrinos in such prodigious quantities that the neutrino signal from a supernova in The Galaxy would allow us to directly...

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  2. 25. Neutrino Quantum Kinetics in Compact Objects
    Sherwood Richers (University of California, Berkeley)
    12/08/2019, 10:15
    Oral Contribution

    Neutrinos play a critical role of transporting energy and changing the lepton density within core-collapse supernovae (CCSNe) and neutron star mergers. The possibility of flavor or angular instabilities in the neutrino distributions have the potential to revolutionize our understanding of the CCSN explosion mechanism and neutrino signals. However, understanding these effects will require...

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  3. 30. General Relativistic Multidimensional Flux-Limited Diffusion Scheme for Neutrino Transport
    Mr Ninoy Rahman (Max Planck for Astrophysics)
    12/08/2019, 11:00
    Oral Contribution

    We present the new code NADA-FLD to solve multi-dimensional neutrino-hydrodynamics in full general relativity (GR) in spherical polar coordinates. The neutrino transport assumes the flux-limited diffusion (FLD) approximation and evolves the neutrino energy densities measured in the frame comoving with the fluid. Operator splitting is used to avoid multi-dimensional coupling of grid cells in...

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  4. 9. The Effects of Neutrino Oscillations on Core-Collapse Supernova Explosions
    Charles Stapleford (North Carolina State University)
    12/08/2019, 11:30
    Oral Contribution

    At the present time even the most sophisticated, multi-dimensional simulations of core-collapse supernovae do not (self-consistently) include neutrino flavor transformation. This physics is missing despite the importance of neutrinos in the core-collapse explosion paradigm. Because of this dependence, any flavor transformation that occurs in the region between the proto-neutron star and the...

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  5. 19. Nucleon-nucleon bremsstrahlung in core-collapse supernova simultations
    Aurore Betranhandy (Stockholm University)
    12/08/2019, 14:00
    Oral Contribution

    Neutrinos are the main vector of energy transport in the revival process of a stalled supernova shock. The treatment of their interactions with the medium is therefore an important part of our simulations. One of those interactions is the nucleon-nucleon bremsstrahlung which will create or annihilate a neutrino/anti-neutrino pair. In this talk, I will present the results for a finer treatment...

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