| Since the discovery of pulsar, astronomical workers has been a strong concern onfundamental physics research, as well as on the study of the time standard, satellitenavigation, detection of gravitational waves and other aspects of the application. As themost basic questions of the pulsar, radiation area is still not a problem. As the observationtechnology continues to progress, the massive observation data has been accumulated, someof the problems have been solved, but also some new confusions have been brought. Themain works of this article are summarizing the observations of the Crab pulsar, a detailedanalysis of the latest observational data, summing up the discussion of the characteristics ofits observations, which aim to constrain the pulsar radiation area through its high-energygamma-ray radiation, including constrain the pulsar radiation height by the highest energyphoton, and further numerical simulation to make some research on fitting pulse profile andspectroscopy to limit the pulsar radiation area.In this paper, the structure is divided into five chapters. The first chapter is anintroduction section, describing the history and achievements of the study on pulsars, andthen put forward this thesis’s topic basis and the significance of the topic. The secondchapter introduces some basic concepts of the pulsar system, the pulsar acceleration regionmodel and the mechanism of high-energy radiation, as well as the observed properties ofpulsars and the methods to constrain the radiation area. The third chapter describes theprogress of studies on high energy gamma-ray emission from the Crab pulsar, and analyzethe observational characteristics. The work of Chapter IV is limiting the Crab pulsarradiation height by the highest energy gamma photon radiation, as well as fitting the Crabpulsar’s pulse profile and energy spectrum by numerical simulation in order to furtherexplore how to constrain the pulsar radiation area. Chapter V is a summary and outlook ofthis work. |
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