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Centrifugal Acceleration in Pulsar Magnetospheres

Published online by Cambridge University Press:  19 July 2016

R. M. C. Thomas
Affiliation:
Indian Institute of Astrophysics, Bangalore 560034, India
R. T. Gangadhara
Affiliation:
Indian Institute of Astrophysics, Bangalore 560034, India

Abstract

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We present a relativistic model of pulsar radio emission by plasma accelerated along the rotating magnetic field lines projected on to a 2D plane perpendicular to the rotation axis. We have derived the expression for the trajectory of a particle, and estimated the spectrum of radio emission by the plasma bunches. We used the parameters given by Peyman & Gangadhara (2002). The analytical expressions for the Stokes parameters are obtained, and their values compared with the observed profiles. The one sense of circular polarization, observed in many pulsars, can be explained in light of our model.

Type
Part 8: Pulsar Electrodynamics and Emission Theory
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

Abramowitz, M., & Stegun, I. A. 1972, A Handbook of Mathematical Functions, (New York: Dover)Google Scholar
Gangadhara, R. T. 1996, A&A, 314, 853.Google Scholar
Peyman, A., & Gangadhara, R. T. 2002, ApJ, 566, 365.Google Scholar