Abstract:
We consider the coherent curvature radiation by relativistic plasma in pulsar magnetosphere. The radiation emitted by relativistic particle bunches is beamed in the direction of field line tangents. For the first time, we have derived analytical expressions for the Stokes parameters of the coherent curvature emission, taking the detailed geometry into account. The emissions from individual bunches are incoherently superposed to find the net emission within the solid angle of radius 1/γ (beaming region) around the line of sight. By taking into account of the viewing geometry, we have estimated the polarization state of the emitted radiation.