use temperature of CMB from Class

src/camel/Astro/cib_interface.cc

@@ -45,7 +45,7 @@ namespace cib {
     cib::zeros(_gnu_, _nfreq_);
     const double h_p = 6.62607004e-34;
     const double k_B = 1.38064852e-23;
-    const double T_cmb = 2.725;
+    const double T_cmb = _klass_->Tcmb();
     for (size_t i = 0; i < _nu_.size(); i++) {
       const double x = h_p*_nu_[i]/k_B/T_cmb;
       _gnu_[i] = x*((std::exp(x) + 1)/(std::exp(x) - 1)) - 4;
@@ -123,7 +123,7 @@ namespace cib {
     cib::array3d y_ll;
     _compute_y_ell_(y_ll);
 
-    const double T_cmb = 2.725;
+    const double T_cmb = _klass_->Tcmb();
     cib::array1d Kcmb_MJy = {244.1, 371.74, 483.69, 287.45, 58.04, 2.27, 1.};
 
     cib::zeros(cl_cib_, _nfreq_, _nfreq_, _nell_);