clusters: Move "magnetic_field()" function to helper.py

Import the global "configs" in helper.py to make parameters lean.

Signed-off-by: Aaron LI <aly@aaronly.me>

1 files changed, 0 insertions, 24 deletions

diff --git a/fg21sim/extragalactic/clusters/main.py b/fg21sim/extragalactic/clusters/main.py
index 840acbe..db82e78 100644
--- a/fg21sim/extragalactic/clusters/main.py
+++ b/fg21sim/extragalactic/clusters/main.py
@@ -75,8 +75,6 @@ class GalaxyClusters:
         self.merger_mass_min = self.configs.getn(comp+"/merger_mass_min")
         self.ratio_major = self.configs.getn(comp+"/ratio_major")
         self.tau_merger = self.configs.getn(comp+"/tau_merger")
-        self.b_mean = self.configs.getn(comp+"/b_mean")
-        self.b_index = self.configs.getn(comp+"/b_index")
 
         self.filename_pattern = self.configs.getn("output/filename_pattern")
         self.use_float = self.configs.getn("output/use_float")
@@ -241,30 +239,8 @@ class GalaxyClusters:
         logger.info("%d (%.1f%%) clusters have recent major mergers." %
                     (num_major, 100*num_major/num))
 
-    def _magnetic_field(self, mass):
         """
-        Calculate the mean magnetic field strength according to the
-        scaling relation between magnetic field and cluster mass.
-
-        Parameters
-        ----------
-        mass : float
-            Cluster mass
-            Unit: [Msun]
-
-        Returns
-        -------
-        B : float
-            The mean magnetic field strength
-            Unit: [uG]
-
-        References
-        ----------
-        Ref.[cassano2012],Eq.(1)
         """
-        M_mean = 1.6e15  # [Msun]
-        B = self.b_mean * (mass/M_mean) ** self.b_index
-        return B
 
     def preprocess(self):
         """