Blog
About

5
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      DIAPHANE: a Portable Radiation Transport Library for Astrophysical Applications

      Preprint

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          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.

          Related collections

          Most cited references 21

          • Record: found
          • Abstract: found
          • Article: found
          Is Open Access

          HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere

          HEALPix -- the Hierarchical Equal Area iso-Latitude Pixelization -- is a versatile data structure with an associated library of computational algorithms and visualization software that supports fast scientific applications executable directly on very large volumes of astronomical data and large area surveys in the form of discretized spherical maps. Originally developed to address the data processing and analysis needs of the present generation of cosmic microwave background (CMB) experiments (e.g. BOOMERanG, WMAP), HEALPix can be expanded to meet many of the profound challenges that will arise in confrontation with the observational output of future missions and experiments, including e.g. Planck, Herschel, SAFIR, and the Beyond Einstein CMB polarization probe. In this paper we consider the requirements and constraints to be met in order to implement a sufficient framework for the efficient discretization and fast analysis/synthesis of functions defined on the sphere, and summarise how they are satisfied by HEALPix.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            A numerical method for solving the neutrino Boltzmann equation coupled to spherically symmetric stellar core collapse

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              The OLS-lens survey the discovery of five new galaxy-galaxy strong lenses from the SDSS

                Bookmark

                Author and article information

                Journal
                11 December 2017
                Article
                1712.04066

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

                Custom metadata
                Accepted for publication in Computer Physics Communications
                astro-ph.IM

                Comments

                Comment on this article