Spin induced multipole moments for the gravitational wave amplitude from   binary inspirals to 2.5 Post-Newtonian order
  Using the NRGR effective field theory formalism we calculate the remaining source multipole moments necessary to obtain the spin contributions to the gravitational wave amplitude to 2.5 Post-Newtonian (PN) order. We also reproduce the tail contribution to the waveform linear in spin at 2.5PN arising from the nonlinear interaction between the current quadrupole and the mass monopole. 
Rafael A. Porto, Andreas Ross, Ira Z. Rothstein
gr-qc astro-ph.CO astro-ph.HE hep-ph hep-th