Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.124..187x&link_type=abstract
Astrophysics and Space Science, Volume 124, Issue 1, pp.187-194
Astronomy and Astrophysics
Astrophysics
2
Scientific paper
Assuming some hydrogen atoms are distributed in the magnetosphere of a pulsar, the gas we are dealing with is a mixture of plasma and hydrogen atoms. Because the induced electrical field in the plasma surrounding the pulsar is very strong, due to the rotation of the pulsar associated with a strong magnetic field, the electric polarization of an atom will include the nonlinear term of the electric field. We obtain the nonlinear dispersion relation for the mixed gas from the Maxwell equations and derive the nonlinear Schrödinger equation, which has solitons as its solution under a certain condition. The curvature radiation of solitons moving along the magnetic field lines is a plausible way to explain the strong radio emission which comes from a pulsar, particularly some field lines existing near the light cylinder with radii of curvature smaller than the radius of the pulsar.
Xinjie Mao
Yi Tong
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