Derivation of the Isotropic Diffusion Source Approximation (IDSA) for Supernova Neutrino Transport by Asymptotic Expansions

We present Chapman--Enskog and Hilbert expansions applied to the \(\BigO(v/c)\) Boltzmann equation for the radiative transfer of neutrinos in core-collapse supernovae. Based on the Legendre expansion of the scattering kernel for the collision integral truncated after the second term, we derive the d...

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Veröffentlicht in:	arXiv.org 2013-08
Hauptverfasser:	Berninger, Heiko, Frenod, Emmanuel, Gander, Martin, Liebendorfer, Mathias, Michaud, Jerome
Format:	Artikel
Sprache:	eng
Schlagworte:	Approximation Asymptotic series Boltzmann transport equation Collapse Diffusion Mathematical analysis Neutrinos Radiative transfer Scaling Supernovae
Online-Zugang:	Volltext
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