Constraining the amplitude of turbulence in solar corona using observations of angular broadening of radio sources

Madhusudan Ingale1*, Prasad Subramanian1 and Iver H. Cairns2
1Indian Institute of Science Education and Research, Pune 411 021, India
2School of Physics, University of Sydney, NSW 2006, Australia

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The angular broadening of compact radio sources observed through a medium having turbulent density irregularities is usually estimated using the phase structure function. We employ an exact formulation for the phase structure function that helps in obtaining an accurate estimate of angular broadening when the baseline lengths are comparable to the inner scale of the turbulent spectrum.

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Keywords : solar wind turbulence – angular broadening