diff --git a/galaxy.py b/galaxy.py
index 037004b..49268c5 100644
--- a/galaxy.py
+++ b/galaxy.py
@@ -108,7 +108,7 @@ def sector_analysis(pp, r=4, dr=0.5, phi=0, dphi=0.125, z=0, dz=0.5):
     return result
 
 
-def ring_analysis(pp, r=4, dr=0.5, dphi=0.125, z=0, dz=0.5, do_mean=True):
+def ring_analysis(pp, r=4, dr=0.5, dphi=0.125, z=0, dz=0.5):
     """
     Compute the average at a given of quantities computed in polar sectors.
     """
@@ -163,32 +163,62 @@ def get_last_sfr(pp, r=4, dr=0.5, z=0, dz=0.5):
     return sfr
 
 
-def colmean4kpc(pp):
+def colmean_ring(pp, r=4, dr=0.5):
     pp.coldens("z")
     pp.rr("z")
     col = pp.get_value("/maps/coldens_z", unit=U.coldens)
     rr = pp.get_value("/maps/rr_z", unit=U.kpc)
-    colmean = np.mean(col[np.abs(rr - 4) < 0.5])
+    colmean = np.mean(col[np.abs(rr - r) < dr])
     return colmean
 
 
-def allinone(pp):
+def analyse_ring(pp, r=4):
+    res = {}
+    res["run"] = pp.run
+    res["num"] = pp.num
+    res["coldens"] = colmean_ring(pp, r)
+    res["sfr"] = get_last_sfr(pp, r)
+    res["time"] = get_time_from_relax(pp)
+    ring = ring_analysis(pp, r, dphi=1.0 / (2 * r))[0]
+    for key in ring:
+        for i, fluid in enumerate(["gas", "dm", "stars"]):
+            res[f"{key}_{fluid}"] = ring[key][i]
+    return res
 
+
+def analyse_disk(pp, rmax=6.0, zmax=1.0):
     get_gas_dm_stars(pp)
     res = {}
     res["run"] = pp.run
     res["num"] = pp.num
-    res["coldens"] = colmean4kpc(pp)
-    res["sfr"] = get_last_sfr(pp)
-    res["time"] = get_time_from_relax(pp)
-    ring = ring_analysis(pp)[0]
-    for key in ring:
-        for i, fluid in enumerate(["gas", "dm", "stars"]):
-            res[f"{key}_{fluid}"] = ring[key][i]
+    res["coldens"] = colmean_ring(pp, rmax / 2.0, rmax / 2.0)
 
+    res["sfr"] = get_last_sfr(pp, rmax / 2.0, rmax / 2.0, 0, zmax)
+    res["time"] = get_time_from_relax(pp)
+
+    for dset, fluid in zip([pp.gas, pp.dm, pp.stars], ["gas", "dm", "stars"]):
+        res[f"ek_{fluid}"] = np.sum(dset["ek"])  # J
+        res[f"mass_{fluid}"] = np.sum(dset["mass_kg"])  # kg
+        res[f"ek_spe_{fluid}"] = res[f"ek_{fluid}"] / res[f"mass_{fluid}"]  # J.kg^-1
+    return res
+
+
+def load_wrapper(pp, fun):
+    """
+    Wrapper to load_unload data and map function
+    """
+    get_gas_dm_stars(pp)
+    res = fun(pp)
     pp.unload_cells()
     pp.unload_parts()
     del pp.dm
     del pp.gas
     del pp.stars
     return res
+
+
+def allinone(pp):
+    def fun(pp):
+        return analyse_disk(pp), analyse_ring(pp, 4), analyse_ring(pp, 6)
+
+    return load_wrapper(pp, fun)