Nature of Coherent Radio Emission from Pulsars |
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Authors: | Dipanjan Mitra |
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Affiliation: | 1.National Center for Radio Astrophysics, Tata Institute of Fundamental Research,Pune,India;2.Physics Department,University of Vermont,Burlington,USA;3.Janusz Gil Institute of Astronomy,University of Zielona Góra,Zielona Góra,Poland |
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Abstract: | The pulsar radio emission originates from regions below 10% of the light cylinder radius. This requires a mechanism where coherent emission is excited in relativistic pair plasma with frequency (nu _{mathrm{cr}}) which is below the plasma frequency (nu _{circ }) i.e. (nu _{mathrm{cr}} < nu _{circ }). A possible model for the emission mechanism is charged bunches (charged solitons) moving relativistically along the curved open dipolar magnetic field lines capable of exciting coherent curvature radio emission. In this article, we review the results from high quality observations in conjunction with theoretical models to unravel the nature of coherent curvature radio emission in pulsars. |
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