3 files changed, 10 insertions, 10 deletions
diff --git a/fg21sim/configs/00-general.conf.spec b/fg21sim/configs/00-general.conf.spec
index bb4cbc8..0a84673 100644
--- a/fg21sim/configs/00-general.conf.spec
+++ b/fg21sim/configs/00-general.conf.spec
@@ -46,9 +46,9 @@ frequencies = float_list(default=list())
 
 # Parameters to calculate the frequencies
 # start and stop frequency value (both inclusive)
-start = float(default=None)
-stop = float(default=None)
-step = float(default=None)
+start = float(default=None, min=0.0)
+stop = float(default=None, min=0.0)
+step = float(default=None, min=0.0)
 
 
 # Configuration for output products
@@ -88,9 +88,9 @@ output_dir = string(default=None)
 # Cosmological parameters
 [cosmology]
 # Hubble constant at z=0 [ km/s/Mpc ]
-H0 = float(default=71.0)
+H0 = float(default=71.0, min=0.0)
 # Density of non-relativistic matter in units of the critical density at z=0
-OmegaM0 = float(default=0.27)
+OmegaM0 = float(default=0.27, min=0.0, max=1.0)
 
 
 # Configurations for initialization/reconfiguration of the `logging` module
diff --git a/fg21sim/configs/10-galactic.conf.spec b/fg21sim/configs/10-galactic.conf.spec
index 32f977b..9aa4dbe 100644
--- a/fg21sim/configs/10-galactic.conf.spec
+++ b/fg21sim/configs/10-galactic.conf.spec
@@ -26,7 +26,7 @@
   # The template map for the simulation.
   template = string(default=None)
   # The frequency of the template map (same unit as in [frequency] section)
-  template_freq = float(default=None)
+  template_freq = float(default=None, min=0.0)
   # The unit of the template map pixel
   template_unit = string(default=None)
 
@@ -71,7 +71,7 @@
 
   # Resolution (unit: arcmin) for simulating each SNR, which are finally
   # mapped to the HEALPix map of Nside specified in "[common]" section.
-  resolution = float(default=1.0)
+  resolution = float(default=1.0, min=0.0)
 
   # Filename prefix for this component
   prefix = string(default="gsnr")
diff --git a/fg21sim/configs/20-extragalactic.conf.spec b/fg21sim/configs/20-extragalactic.conf.spec
index c6be967..4b60187 100644
--- a/fg21sim/configs/20-extragalactic.conf.spec
+++ b/fg21sim/configs/20-extragalactic.conf.spec
@@ -27,11 +27,11 @@
   catalog_outfile = string(default=None)
 
   # The fraction that a cluster hosts a radio halo
-  halo_fraction = float(default=None)
+  halo_fraction = float(default=None, min=0.0, max=1.0)
 
   # Resolution (unit: arcmin) for simulating each cluster, which are finally
   # mapped to the HEALPix map of Nside specified in "[common]" section.
-  resolution = float(default=0.5)
+  resolution = float(default=0.5, min=0.0)
 
   # Filename prefix for this component
   prefix = string(default="egcluster")
@@ -49,7 +49,7 @@
   # PS components to be simulated
   pscomponents=string_list(default=list())
   # Resolution [arcmin]
-  resolution=float(default=0.6)
+  resolution=float(default=0.6, min=0.0)
   # Number of each type of point source
     # Star forming
     [[[starforming]]]