Evidence for coherent curvature radiation in PSR J1645−0317 with disordered distribution of polarization position angle

ABSTRACT The diverse polarization properties in pulsars are conflict with applying a unique emission mechanism to the population. position angle (PPA) traverse most shows an S-shaped curve that can be interpreted using rotating vector model (RVM) as radio being directed either parallel or perpendicular divergent magnetic field lines and argues for coherent curvature radiation from charge bunches strongly magnetized pair plasma. However, subset of is significantly depolarized PPA complex pattern which cannot explained RVM. We propose even such cases highly polarized time samples single pulses should follow RVM possibly two tracks separated by 90°. have investigated PSR J1645−0317, traverse, showed new evidence considering only pulses, distribution clearly follows conclude this favours universally applicable pulsar