From 029dc5974f3a3f6c4b5d346f440901b40ba0d73f Mon Sep 17 00:00:00 2001
From: Aaron LI <aly@aaronly.me>
Date: Tue, 30 Oct 2018 23:13:26 +0800
Subject: clusters/helper: Remove the obsolete fmass_nfw()

---
 fg21sim/extragalactic/clusters/helper.py | 26 --------------------------
 1 file changed, 26 deletions(-)

diff --git a/fg21sim/extragalactic/clusters/helper.py b/fg21sim/extragalactic/clusters/helper.py
index 96800e4..d8e231e 100644
--- a/fg21sim/extragalactic/clusters/helper.py
+++ b/fg21sim/extragalactic/clusters/helper.py
@@ -481,29 +481,3 @@ def draw_halo(radius, nr=2.0, felong=None, rotation=None):
     # Normalized to have *mean* value of 1
     image /= image.mean()
     return image
-
-
-def fmass_nfw(x, c=5.0):
-    """
-    The normalized total mass profile by integrating from the NFW
-    density profile.
-
-    Parameters
-    ----------
-    x : float
-        x = R/R_vir, fractional virial radius
-    c : float
-        Concentration parameter
-        Default: 5.0 (for clusters)
-
-    Returns
-    -------
-    fmass : float
-        The normalized total mass w.r.t. the virial mass, i.e.,
-        fmass = M(<x*R_vir) / M_vir
-
-    Reference: [lokas2001],Eq.(2,4,5,8)
-    """
-    gc = 1.0 / (np.log(1+c) - c/(1+c))
-    fmass = gc * (np.log(1+c*x) - c*x / (1+c*x))
-    return fmass
-- 
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