Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: DIAPHANE: a Portable Radiation Transport Library for Astrophysical
  Applications   One of the most computationally demanding aspects of the hydrodynamical
modelling of Astrophysical phenomena is the transport of energy by radiation or
relativistic particles. Physical processes involving energy transport are
ubiquitous and of capital importance in many scenarios ranging from planet
formation to cosmic structure evolution, including explosive events like core
collapse supernova or gamma-ray bursts. Moreover, the ability to model and
hence understand these processes has often been limited by the approximations
and incompleteness in the treatment of radiation and relativistic particles.
The DIAPHANE project has focused in developing a portable and scalable library
that handles the transport of radiation and particles (in particular neutrinos)
independently of the underlying hydrodynamic code. In this work, we present the
computational framework and the functionalities of the first version of the
DIAPHANE library, which has been successfully ported to three different
smoothed-particle hydrodynamic codes, GADGET2, GASOLINE and SPHYNX. We also
present validation of different modules solving the equations of radiation and
neutrino transport using different numerical schemes.

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The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: physics
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-th
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The categories of this paper are: bayes-an
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The categories of this paper are: math
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-th
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga