Abstract
SMITH has recently presented an oblique rotator model for the Crab pulsar1 in which the magnetic axis is inclined at an angle of 45° to the rotation axis and the observer's line of sight is at a latitude of about 20°. This model is in conflict with that discussed by Wampler et al.2, Kristian et al.3, Manchester4 and others, in which the magnetic axis is almost perpendicular to the rotation axis and the line of sight passes close to the magnetic axis (the magnetic pole model). Both these models base their interpretation on the observed variation through the pulse of the position angle of the optical and radio radiation. In Smith's model the emission originates from regions close to the velocity of light cylinder where relativistic effects are important. We wish to show that Smith's model, as presented, cannot explain the observations.
This is a preview of subscription content, access via your institution
Access options
References
Smith, F. G., Nature Physical Science, 231, 191 (1971).
Wampler, E. J., Scargle, J. D., and Miller, J. S., Astrophys. J. Lett., 157, L1 (1969).
Kristian, J., Visvanathan, N., Westphal, J. A., and Snellen, G. H., Astrophys. J., 162, 475 (1970).
Manchester, R. N., Nature Physical Science, 231, 189 (1971).
Radhakrishnan, V., Cooke, D. J., Komesaroff, M. M., and Morris, D., Nature, 221, 443 (1969).
Lyne, A. G., Smith, F. G., and Graham, D. A., Mon. Not. Roy. Astron. Soc. (in the press).
Smith, F. G., Mon. Not. Roy. Astron. Soc., 149, 1 (1970).
Suzuki, M., Nature Physical Science, 230, 13 (1971).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
MANCHESTER, R., TADEMARU, E. Crab Pulsar Radiation Mechanism. Nature Physical Science 232, 164–165 (1971). https://doi.org/10.1038/physci232164a0
Received:
Issue date:
DOI: https://doi.org/10.1038/physci232164a0
This article is cited by
-
Some remarks on the hypothesis of relativistic beaming of pulsar emission
Astrophysics and Space Science (1975)
-
The alignment of the Crab pulsar magnetic axis
Astrophysics and Space Science (1975)
-
Mechanisms of optical, X-ray and?-radiation from Crab pulsar
Astrophysics and Space Science (1972)