Sunrise is a Monte-Carlo Radiation Transfer code for calculating absorption and scattering of light in astrophysical situations. It can be used to generate spectral energy distributions of simulated galaxies run with the Gadget, Gasoline, Arepo, Enzo or ART codes. The computation and model is described in "Sunrise: Dust Radiative Transfer in Arbitrary Geometries", Jonsson 2006, MNRAS, 372, 2 and "High-Resolution Panchromatic Spectral Models of Galaxies including Photoionisation and Dust", Jonsson, Groves & Cox 2010, MNRAS, 403, 17 . The GPU-accelerated dust SED calculation is described in "Accelerating Dust Temperature Calculations with Graphics Processing Units", Jonsson & Primack 2009, New Astronomy, 15, 509. More information is also available on the Wiki, at the Sunrise home page (in particular, the documentation page) and on the Doxygen documentation page

Lead developer of Sunrise is Patrik Jonsson. Additional functionality has been contributed by Charlotte Christensen and Tom Quinn at University of Washington and Chris Hayward at CfA.

Sunrise is in active development and the trunk can contain buggy and/or unstable code. The currently stable version of Sunrise is 3.03, tagged as v3_03 in the repo, but it is quite old. The release of 3.04 is imminent, but there are some new important things being worked on, so continue using v3_03 for now. Note that on June 27, 2011, Sunrise development was switched from svn to hg (Mercurial). While the svn repository still exists, no further commits will be done to it.

If you have questions about Sunrise that aren't answered on the Wiki, please use the discussion group. That way, questions become searchable by others. If you find a bug, please report it with the issue tracker. You can also get activity updates by signing up for the activity email list.