English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The evolution of many astrophysical systems is dominated by the interactionbetween matter and radiation such as photons or neutrinos. The dynamics can bedescribed by the evolution equations of radiation hydrodynamics in whichreactions between matter particles and radiation quanta couples thehydrodynamic equations to those of radiative transfer, see Munier & Weaver(1986a), Munier & Weaver (1986b).. The numerical treatment has to account fortheir potential stiffness (e.g., in optically thick environments). In thisarticle, we will present a new method to numerically integrate these equationsin a stable way by using minimally implicit Runge-Kutta methods. With thesemethods, the inversion of the implicit operator can be done analytically. Wealso take into account the physical behavior of the evolved variables in thelimit of the stiff regime. We will show the results of applying this method tothe reactions between neutrinos and matter in core-collapse supernovaesimulations.

Minimally implicit methods for the numerical integration of the neutrino transport equations