Theory of NP 0532 pulsar radiation and the nature of the activity of the Crab Nebula

Details Theory of NP 0532 pulsar radiation and the nature of the activity of the Crab Nebula Theory of NP 0532 pulsar radiation and the nature of the activity of the Crab Nebula

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ap%26ss..90...19l&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 90, no. 1, Feb. 1983, p. 19-43.

Astronomy and Astrophysics

Astronomy

60

Crab Nebula, Magnetohydrodynamic Stability, Magnetospheric Instability, Pulsar Magnetospheres, Pulsars, Stellar Magnetic Fields, Stellar Radiation, Cyclotron Radiation, Electron-Positron Pairs, Gamma Ray Astronomy, Pair Production, Particle Acceleration, Positrons, Relativistic Electron Beams, Relativistic Plasmas, Stellar Atmospheres, Stellar Spectra, Synchrotron Radiation, Wave Excitation, X Ray Sources

Scientific paper

A quantitative theory of high-frequency radiation from the pulsar NP 0532 and the Crab Nebula is developed. The structure of pulsar magnetospheres and parameters of ejected plasma are examined, and the Cerenkov excitation of longitudinal waves by particle beams is addressed. Cyclotron instability and its excitation conditions are discussed, and the development of the cyclotron instability is treated. The acceleration of particles in pulsar magnetospheres is covered, and the nature of radiation from the Crab Nebula and the NP 0532 pulsar is studied. It is shown that X-ray and gamma ray radiation of the pulsar is explained by the synchrotron radiation of beam particles. The evaluated synchrotron luminosity coincides with that observed for the pulsar. The expected spectrum of the synchrotron radiation of ultrarelativistic electron-positron pairs ejected from the pulsar magnetosphere into the Crab Nebula agrees well with observations.

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