INTERSTELLAR TURBULENT PLASMA SPECTRUM IN THE WIDE REGION OF TURBULENCE SCALES FROM OBSERVATIONS OF PULSARS

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Abstract:

We present here the results of studying of interstellar plasma inhomogeneities spectrum based on different kinds of pulsar observations. Using the theory of diffractive and refractive scintillation and pulsar observations at different frequencies, we construct a composite structure function of phase fluctuations in the wide region of turbulence scales: <$>(10^{6} \div 10^{17})\,\hbox{m}<$>. We found that an outer scale of plasma spectrum is about <$>10^{15}\,\hbox{m}<$> and for scales <$>(10^{6} \div 10^{14})\,\hbox{m}<$> the spectrum is close to Kolmogorov one.

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/10556790215570

Affiliations: Pushchino Radio Astronomy Observatory of Lebedev Physical Institute, 142290, Pushchino, Russia

Publication date: January 1, 2002

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