Partially screened gap in pulsars
We discuss the Partially Screened Gap (PSG) model of the pulsar inner accelerator, which implies that the temperature of the polar cap surface is almost equal to the so called critical temperature, which is defined by the strength of the magnetic field at the neutron star surface. Observations of thermal X-ray emission point out an important correlation between the hot spot area and the temperature derived from the blackbody fit. The implied magnetic field at the pole is usually much higher than the conventional dipolar values. Therefore, we believe that the surface magnetic field in radio pulsars is non-dipolar in nature. We argue that major characteristics of the pulsar radiation, including correlation between observed features of X-ray and radio emissions can be naturally explained in the framework of PSG model. © 2011 American Institute of Physics.