change XRB gamma back to 2. (Lehmer et al. 2016; Aird et al. 2017)

pcigale/sed_modules/xray.py

@@ -72,9 +72,9 @@ class Xray(SedModule):
         # also have two components:
         #   2.1 high-mass X-ray binaries (HMXB)
         #   2.2 low-mass X-ray binaries (LMXB)
-        # Assuming gamma=2.5 for both components (Wu et al. 2008)
+        # Assuming gamma=2. for both components (Wu et al. 2008)
         # normalized such that L(2-10 keV) = 1.
-        self.lumin_xrb = self.wave**-0.5 / (2*lam_2keV**0.5 - 2*lam_10keV**0.5)
+        self.lumin_xrb = self.wave**-1 / np.log(5.)
 
         # We compute the unobscured AGN corona X-ray emission
         # The shape is power-law with high-E exp. cutoff