Use appropriate softening lengths for the EAGLE 12 and EAGLE 25 test cases.

examples/EAGLE_12/eagle_12.yml

@@ -29,7 +29,7 @@ Statistics:
 # Parameters for the self-gravity scheme
 Gravity:
   eta:                   0.025    # Constant dimensionless multiplier for time integration. 
-  epsilon:               0.1      # Softening length (in internal units).
+  epsilon:               0.0001   # Softening length (in internal units).
   a_smooth:              1000.
   r_cut:                 4.
   

examples/EAGLE_25/eagle_25.yml

@@ -23,6 +23,13 @@ Snapshots:
 Statistics:
   delta_time:          1e-2 # Time between statistics output
 
+# Parameters for the self-gravity scheme
+Gravity:
+  eta:                   0.025    # Constant dimensionless multiplier for time integration. 
+  epsilon:               0.0001   # Softening length (in internal units).
+  a_smooth:              1000.
+  r_cut:                 4.
+  
 # Parameters for the hydrodynamics scheme
 SPH:
   resolution_eta:        1.2348   # Target smoothing length in units of the mean inter-particle separation (1.2348 == 48Ngbs with the cubic spline kernel).