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