This folder contains figures and the results of running ChaNGa  on the Wengen 
Test 04 protoplanetary disk code test, as referenced in Backus and Quinn 2016.  
We reproduce all the figures presented on the code comparison web page 
(http://users.camk.edu.pl/gawrysz/test4/)

Tests run by Isaac Backus

CONTENTS

fft_surface_density_all/
    Fourier transform along the angular direction of the surface density for
    all output snapshots and .mp4 movie of the plots.
    Reproduces "FFT of surface density, t =" on the Images table on the 
    Wengen test website
    
fft_surface_density_short/
    Subset of plots above for only the time steps shown on the Wengen site
    
power_spectrum/
    Reproduces plots in the second images table:
        "FFT integrated over r"
            -linear m
            -log m
            -A_m(t)
        "FFT integrated over r, averged over t"
        
surface_density_all/
    Surface density plots for all output snapshots and .mp4 movie of the plots.
    Reproduces "surface density map, t = " on  the Wengen site
    
surface_density_short/
    Subset of plots above for only the time steps shown on the Wengen site

README

