diff --git a/analysis/slices.py b/analysis/slices.py
index 581927d..8b260cc 100644
--- a/analysis/slices.py
+++ b/analysis/slices.py
@@ -34,7 +34,7 @@ def plot_imshow_with_reference( data_list,
     elif isinstance(L, int) or isinstance(L, float):
         L = [L for data in data_list]
 
-    sep = 10 if L[0] < 100 else 20 if L[0] < 200 else 100
+    sep = 10 if L[0] < 50 else 20 if L[0] < 200 else 100
     ticks = [np.arange(0, l+1, sep)*len(dat)/l for l, dat in zip(L,data_list)]
     tick_labels = [np.arange(0, l+1, sep) for l in L]
 
@@ -86,10 +86,11 @@ def plot_imshow_with_reference( data_list,
         for i, data in enumerate(data_list):
             im = axes[i].imshow(data, cmap=cmap, origin='lower', vmin=vmin, vmax=vmax)
             axes[i].set_title(titles[i], fontsize=fs_titles)
-            axes[0, i].set_xticks(ticks[i])
-            axes[0, i].set_yticks(ticks[i])
-            axes[0, i].set_xticklabels(tick_labels[i])
-            axes[0, i].set_yticklabels(tick_labels[i])
+            axes[i].set_xticks(ticks[i])
+            axes[i].set_yticks(ticks[i])
+            axes[i].set_xticklabels(tick_labels[i])
+            axes[i].set_yticklabels(tick_labels[i])
+            axes[i].set_xlabel('Mpc/h')
         fig.colorbar(im, ax=axes[:], orientation='vertical')
 
     return fig, axes
@@ -123,7 +124,7 @@ if __name__ == "__main__":
     fields = [read_field(args.directory+f) for f in args.filenames]
 
     if args.index is None:
-        index = ref_field.N0//2
+        index = fields[0].N0//2
     else:
         index=args.index
     
diff --git a/cosmo_params.py b/cosmo_params.py
index 8ca1636..14e48dc 100644
--- a/cosmo_params.py
+++ b/cosmo_params.py
@@ -63,4 +63,32 @@ def parse_arguments_cosmo(parsed_args):
     return cosmo_dict
 
 def z2a(z):
-    return 1.0/(1.0+z)
\ No newline at end of file
+    return 1.0/(1.0+z)
+
+
+cosmo_defaults = {
+        "h": 0.6732,
+        "Omega_m": 0.302,
+        "Omega_b": 0.049,
+        "Omega_q": 0.6842,
+        "Omega_k":0.0,
+        "Omega_r": 0.0,
+        "n_s": 0.968,
+        "sigma8": 0.815,
+        "A_s": 2.148752e-09,
+        "Tcmb": 2.7255,
+        "k_p": 0.05,
+        "N_ur": 2.046,
+        "m_nu1": 0.06,
+        "m_nu2": 0.0,
+        "m_nu3": 0.0,
+        "w_0": -1.0,
+        "w_a": 0.0,
+        "fnl": 100.0,
+        "gnl": 0.0,
+        "k_max":10.0, 
+        "tau_reio":0.06,
+        "WhichSpectrum":"EH",
+        "w0_fld":-1.0,
+        "wa_fld":0.0,
+    }
\ No newline at end of file