JETP Letters

, Volume 90, Issue 10, pp 637–641

Helicity detection of astrophysical magnetic fields from radio emission statistics


DOI: 10.1134/S0021364009220019

Cite this article as:
Volegova, A.A. & Stepanov, R.A. Jetp Lett. (2010) 90: 637. doi:10.1134/S0021364009220019


The inverse problem of the detection of the helical properties of a turbulent magnetic field using integral observation statistics is discussed. A principal solution that sets the relation between the values of magnetic helicity and the level of correlation between the Faraday rotation measure and the polarization degree of radio synchrotron emission has been presented. The effect of depolarization plays the main role in this problem and allows for the detection of magnetic helicity for a certain frequency range of observable radio emissions. The proposed method is mainly sensitive to the large-scale magnetic field component.

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  1. 1.Institute of Continuous Media MechanicsPermRussia

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