Dr. Marc S. Seigar

Astrophysics Research Group

University of Arkansas at Little Rock


Image credits: NASA/JPL-Caltech/Harvard-Smithsonian CfA/NOAO

2DFFT Code:


The 2DFFT code can be downloaded here.


We kindly ask that if you publish results using this code, that you cite the following paper:

Davis et al. 2012, "Measurement of Galactic Logarithmic Spiral Arm Pitch Angle Using Two-Dimensional Fast Fourier Transform Decomposition", ApJS 199: 33 (2012, ApJS).