The Bayesian Extinction and Stellar Tool (BEAST) fits the ultraviolet to near-infrared photometric SEDs of stars to extract stellar and dust extinction parameters. The stellar parameters are age (t), mass (M), and metallicity (M). The dust extinction parameters are dust column (Av), average grain size (Rv), and mixing between type A and B extinction curves (fA).
The full details of the BEAST are provided by Gordon et al. (2016, ApJ, 826, 104). <http://adsabs.harvard.edu/abs/2016ApJ...826..104G>
Details of installing, running, and contributing to the BEAST are at <http://beast.readthedocs.io>.
BEAST contributors 2016 and before (BEAST paper authorship): Karl D. Gordon, Morgan Fouesneau, Heddy Arab, Kirill Tchernyshyov, Daniel R. Weisz, Julianne J. Dalcanton, Benjamin F. Williams, Eric F. Bell, Lucianna Bianchi, Martha Boyer, Yumi Choi, Andrew Dolphin, Leo Girardi, David W. Hogg, Jason S. Kalirai, Maria Kapala, Alexia R. Lewis, Hans-Walter Rix, Karin Sandstrom, and Evan D. Skillman
Direct code contributors (including new contributors since 2016): <https://github.com/karllark/beast/graphs/contributors>
This code is currently in active development.
The BEAST is licensed under a 3-clause BSD style license (see the
licenses/LICENSE.rst file).