Merge pull request #56 from cosimoNigro/sourcery/add_ebl_models

Add EBL models (Sourcery refactored)

agnpy/absorption/absorption.py

@@ -114,8 +114,7 @@ def opacity_point_source(self, nu):
         s = self.target.epsilon_0 * epsilon_1 * (1 - self.blob.mu_s) / 2
         integral = (1 - self.blob.mu_s) * sigma(s) / self.r
         prefactor = self.target.L_0 / (4 * np.pi * self.target.epsilon_0 * m_e * c ** 3)
-        tau = (prefactor * integral).to_value("")
-        return tau
+        return (prefactor * integral).to_value("")
 
     def opacity_disk(self, nu):
         """opacity generated by a Shakura Sunyaev disk
@@ -198,8 +197,7 @@ def opacity_shell_blr(self, nu):
         prefactor = (self.target.xi_line * self.target.L_disk) / (
             (4 * np.pi) ** 2 * self.target.epsilon_line * m_e * c ** 3
         )
-        tau = (prefactor * integral).to_value("")
-        return tau
+        return (prefactor * integral).to_value("")
 
     def opacity_ring_torus(self, nu):
         """opacity generated by a ring Dust Torus
@@ -225,8 +223,7 @@ def opacity_ring_torus(self, nu):
         prefactor = (self.target.xi_dt * self.target.L_disk) / (
             8 * np.pi ** 2 * self.target.epsilon_dt * m_e * c ** 3
         )
-        tau = (prefactor * integral).to_value("")
-        return tau
+        return (prefactor * integral).to_value("")
 
     def tau(self, nu):
         """optical depth