Optical Pulse Polarization of the Crab Pulsar
نویسندگان
چکیده
The strong optical emission of the Crab pulsar allows us to study the polarization properties in detail. Optical pulsed emission can best be understood as synchrotron radiation of relativistic electron-positron pairs in the outer magnetosphere. We calculate the polarization properties of the optical pulses based on the outer gap model, which has explained much of the observed properties of this pulsar. We Ðnd that the calculated polarization proÐles exhibit the same qualitative behaviors as the observations for a large range in parameter space. It seems that the optical polarizations do not constrain strongly on the Crab pulsarÏs emission geometry. Subject headings : polarization È pulsars : individual (Crab Nebula) È radiation mechanisms : nonthermal
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