SPLASH: An Interactive Visualisation Tool for Smoothed Particle Hydrodynamics Simulations

This paper presents splash, a publicly available interactive visualisation tool for Smoothed Particle Hydrodynamics (SPH) simulations. Visualisation of SPH data is more complicated than for grid-based codes because the data are defined on a set of irregular points and therefore requires a mapping procedure to a two dimensional pixel array. This means that, in practise, many authors simply produce particle plots which offer a rather crude representation of the simulation output. Here we describe the techniques and algorithms which are utilised in splash in order to provide the user with a fast, interactive and meaningful visualisation of one, two and three dimensional SPH results.

[1]  Christopher J. Fluke,et al.  An Advanced, Three-Dimensional Plotting Library for Astronomy , 2006, Publications of the Astronomical Society of Australia.

[2]  V. Springel The Cosmological simulation code GADGET-2 , 2005, astro-ph/0505010.

[3]  Daniel J. Price,et al.  Smoothed Particle Magnetohydrodynamics – II. Variational principles and variable smoothing-length terms , 2003, astro-ph/0310790.

[4]  Volker Springel,et al.  Cosmological SPH simulations: The entropy equation , 2001 .

[5]  S Rosswog,et al.  Producing Ultrastrong Magnetic Fields in Neutron Star Mergers , 2006, Science.

[6]  J. Monaghan SPH compressible turbulence , 2002, astro-ph/0204118.

[7]  William H. Press,et al.  Dynamic mass exchange in doubly degenerate binaries I , 1990 .

[8]  Collisions and close encounters involving massive main-sequence stars , 2006, astro-ph/0602042.

[9]  M. Steinmetz,et al.  The Santa Barbara Cluster Comparison Project: A Comparison of Cosmological Hydrodynamics Solutions , 1999, astro-ph/9906160.

[10]  Daniel J. Price,et al.  An energy‐conserving formalism for adaptive gravitational force softening in smoothed particle hydrodynamics and N‐body codes , 2006, astro-ph/0610872.

[11]  C. Haswell,et al.  Comprehensive simulations of superhumps , 2007, 0704.1519.

[12]  J. Monaghan Smoothed particle hydrodynamics , 2005 .

[13]  V. Springel,et al.  Cosmological smoothed particle hydrodynamics simulations: the entropy equation , 2001, astro-ph/0111016.

[14]  M. Freitag,et al.  A comprehensive set of simulations of high-velocity collisions between main-sequence stars , 2004, astro-ph/0403621.

[15]  Volker Bromm,et al.  The formation of a star cluster: predicting the properties of stars and brown dwarfs , 2002, astro-ph/0212380.

[16]  L. Hernquist,et al.  TREESPH: A Unification of SPH with the Hierarchical Tree Method , 1989 .

[17]  T. Quinn,et al.  Formation of Giant Planets by Fragmentation of Protoplanetary Disks , 2002, Science.