What is DIRT?

DIRT is a Java applet for modelling astrophysical processes in circumstellar dust shells around young and evolved stars. With DIRT, you can:

• Select and display over 500,000 pre-run model spectral energy distributions (SEDs)
• Find the best-fit model to your data set
• Account for beam size in model fitting
• Manipulate data and models with an interactive viewer
• Display gas and dust density and temperature profiles
• Display model intensity profiles at various wavelengths

From here you can:

• Get more info about running the DIRT applet (e.g., System Requirements).
• Run the DIRT applet.
• Read the DIRT on-line help files.
• Read details about the radiation transfer models used in DIRT.

The current version of DIRT is 3.1 patch 14:13 08/16/2007 (latest changes)