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The pulses as a diagnostic technique in the Sun

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Abstract

In this paper we discuss a method of finding physical parameters by studying the pulses in the Sun. For the sake of a mathematical approach, we consider an ideal,highly relevant model which could exist in the Sun with the effects of ionization, due to which there will be a continuous formation of ionized particles. It is observed that the pulse originated at the centre of a dipole field propagates along the magnetic field. We derive a dispersion relation for these types of pulses, propagating from the centre to the solar surface. The time taken by the pulse from its source to the solar surface is also estimated, with due account of the ionization effects on the pulse. Without proper account of these effects, the technique employed in determing the physical parameters may lead to error. Temporal and spatial damping of the pulses lead to estimates of the velocity distribution of the ionized particles and of the amplitude of the magnetic field of the wave in pulse.

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Authors and Affiliations

  1. Indian Institute of Astrophysics, Bangalore, India

    G. C. Das

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  1. G. C. Das
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Das, G.C. The pulses as a diagnostic technique in the Sun. Astrophys Space Sci 71, 353–361 (1980). https://doi.org/10.1007/BF00639394

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  • DOI: https://doi.org/10.1007/BF00639394

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